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Finding the Fourth Proportional to 45,879.50, 63,333.14 and 27,980.93

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Solution

The fourth proportional to 45,879.50, 63,333.14 and 27,980.93 is: 38,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,879.50 : 63,333.14 = 27,980.93 : x
  2. Step 2: Convert to fraction form
    45,879.50/63,333.14 = 27,980.93/x
  3. Step 3: Cross multiply
    45,879.50x = 63,333.14 × 27,980.93
  4. Step 4: Simplify right side
    45,879.50x = 1,772,119,700.45
  5. Step 5: Solve for x
    x = 1,772,119,700.45/45,879.50
  6. Step 6: Final answer
    x = 38,625.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.