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Finding the Fourth Proportional to 64,696.91, 89,276.92 and 36,397.13

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Solution

The fourth proportional to 64,696.91, 89,276.92 and 36,397.13 is: 50,225.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,696.91 : 89,276.92 = 36,397.13 : x
  2. Step 2: Convert to fraction form
    64,696.91/89,276.92 = 36,397.13/x
  3. Step 3: Cross multiply
    64,696.91x = 89,276.92 × 36,397.13
  4. Step 4: Simplify right side
    64,696.91x = 3,249,423,125.86
  5. Step 5: Solve for x
    x = 3,249,423,125.86/64,696.91
  6. Step 6: Final answer
    x = 50,225.33

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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.