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Finding the Fourth Proportional to 62,040.76, 85,400.16 and 54,069.16

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Solution

The fourth proportional to 62,040.76, 85,400.16 and 54,069.16 is: 74,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,040.76 : 85,400.16 = 54,069.16 : x
  2. Step 2: Convert to fraction form
    62,040.76/85,400.16 = 54,069.16/x
  3. Step 3: Cross multiply
    62,040.76x = 85,400.16 × 54,069.16
  4. Step 4: Simplify right side
    62,040.76x = 4,617,514,915.07
  5. Step 5: Solve for x
    x = 4,617,514,915.07/62,040.76
  6. Step 6: Final answer
    x = 74,427.12

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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.