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Finding the Fourth Proportional to 64,636.92, 97,002.77 and 42,442.52

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Solution

The fourth proportional to 64,636.92, 97,002.77 and 42,442.52 is: 63,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,636.92 : 97,002.77 = 42,442.52 : x
  2. Step 2: Convert to fraction form
    64,636.92/97,002.77 = 42,442.52/x
  3. Step 3: Cross multiply
    64,636.92x = 97,002.77 × 42,442.52
  4. Step 4: Simplify right side
    64,636.92x = 4,117,041,308.55
  5. Step 5: Solve for x
    x = 4,117,041,308.55/64,636.92
  6. Step 6: Final answer
    x = 63,694.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.