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Finding the Fourth Proportional to 79,384.50, 119,076.75 and 23,980.50

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Solution

The fourth proportional to 79,384.50, 119,076.75 and 23,980.50 is: 35,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,384.50 : 119,076.75 = 23,980.50 : x
  2. Step 2: Convert to fraction form
    79,384.50/119,076.75 = 23,980.50/x
  3. Step 3: Cross multiply
    79,384.50x = 119,076.75 × 23,980.50
  4. Step 4: Simplify right side
    79,384.50x = 2,855,520,003.38
  5. Step 5: Solve for x
    x = 2,855,520,003.38/79,384.50
  6. Step 6: Final answer
    x = 35,970.75

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.