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Finding the Fourth Proportional to 62,728.71, 86,677.79 and 46,660.83

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Solution

The fourth proportional to 62,728.71, 86,677.79 and 46,660.83 is: 64,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,728.71 : 86,677.79 = 46,660.83 : x
  2. Step 2: Convert to fraction form
    62,728.71/86,677.79 = 46,660.83/x
  3. Step 3: Cross multiply
    62,728.71x = 86,677.79 × 46,660.83
  4. Step 4: Simplify right side
    62,728.71x = 4,044,457,390.66
  5. Step 5: Solve for x
    x = 4,044,457,390.66/62,728.71
  6. Step 6: Final answer
    x = 64,475.38

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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.