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Finding the Fourth Proportional to 63,070.36, 87,052.26 and 37,915

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Solution

The fourth proportional to 63,070.36, 87,052.26 and 37,915 is: 52,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,070.36 : 87,052.26 = 37,915 : x
  2. Step 2: Convert to fraction form
    63,070.36/87,052.26 = 37,915/x
  3. Step 3: Cross multiply
    63,070.36x = 87,052.26 × 37,915
  4. Step 4: Simplify right side
    63,070.36x = 3,300,586,437.90
  5. Step 5: Solve for x
    x = 3,300,586,437.90/63,070.36
  6. Step 6: Final answer
    x = 52,331.82

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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.