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Finding the Fourth Proportional to 64,502.92, 89,022.72 and 36,210.16

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Solution

The fourth proportional to 64,502.92, 89,022.72 and 36,210.16 is: 49,974.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,502.92 : 89,022.72 = 36,210.16 : x
  2. Step 2: Convert to fraction form
    64,502.92/89,022.72 = 36,210.16/x
  3. Step 3: Cross multiply
    64,502.92x = 89,022.72 × 36,210.16
  4. Step 4: Simplify right side
    64,502.92x = 3,223,526,934.84
  5. Step 5: Solve for x
    x = 3,223,526,934.84/64,502.92
  6. Step 6: Final answer
    x = 49,974.90

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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.