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Finding the Fourth Proportional to 46,048.59, 69,076.80 and 12,768.66

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Solution

The fourth proportional to 46,048.59, 69,076.80 and 12,768.66 is: 19,154.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,048.59 : 69,076.80 = 12,768.66 : x
  2. Step 2: Convert to fraction form
    46,048.59/69,076.80 = 12,768.66/x
  3. Step 3: Cross multiply
    46,048.59x = 69,076.80 × 12,768.66
  4. Step 4: Simplify right side
    46,048.59x = 882,018,173.09
  5. Step 5: Solve for x
    x = 882,018,173.09/46,048.59
  6. Step 6: Final answer
    x = 19,154.08

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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.