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Finding the Fourth Proportional to 70,695.86, 97,562.15 and 38,432.65

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Solution

The fourth proportional to 70,695.86, 97,562.15 and 38,432.65 is: 53,038.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,695.86 : 97,562.15 = 38,432.65 : x
  2. Step 2: Convert to fraction form
    70,695.86/97,562.15 = 38,432.65/x
  3. Step 3: Cross multiply
    70,695.86x = 97,562.15 × 38,432.65
  4. Step 4: Simplify right side
    70,695.86x = 3,749,571,284.22
  5. Step 5: Solve for x
    x = 3,749,571,284.22/70,695.86
  6. Step 6: Final answer
    x = 53,038.06

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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.