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Finding the Fourth Proportional to 69,599.72, 96,057.92 and 40,918.16

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Solution

The fourth proportional to 69,599.72, 96,057.92 and 40,918.16 is: 56,473.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,599.72 : 96,057.92 = 40,918.16 : x
  2. Step 2: Convert to fraction form
    69,599.72/96,057.92 = 40,918.16/x
  3. Step 3: Cross multiply
    69,599.72x = 96,057.92 × 40,918.16
  4. Step 4: Simplify right side
    69,599.72x = 3,930,513,339.83
  5. Step 5: Solve for x
    x = 3,930,513,339.83/69,599.72
  6. Step 6: Final answer
    x = 56,473.12

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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.