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Finding the Fourth Proportional to 64,047.92, 88,387.62 and 40,175.60

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Solution

The fourth proportional to 64,047.92, 88,387.62 and 40,175.60 is: 55,443.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,047.92 : 88,387.62 = 40,175.60 : x
  2. Step 2: Convert to fraction form
    64,047.92/88,387.62 = 40,175.60/x
  3. Step 3: Cross multiply
    64,047.92x = 88,387.62 × 40,175.60
  4. Step 4: Simplify right side
    64,047.92x = 3,551,025,666.07
  5. Step 5: Solve for x
    x = 3,551,025,666.07/64,047.92
  6. Step 6: Final answer
    x = 55,443.26

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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.