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Finding the Fourth Proportional to 58,497.71, 80,726.84 and 31,640.22

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Solution

The fourth proportional to 58,497.71, 80,726.84 and 31,640.22 is: 43,663.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,497.71 : 80,726.84 = 31,640.22 : x
  2. Step 2: Convert to fraction form
    58,497.71/80,726.84 = 31,640.22/x
  3. Step 3: Cross multiply
    58,497.71x = 80,726.84 × 31,640.22
  4. Step 4: Simplify right side
    58,497.71x = 2,554,214,854.79
  5. Step 5: Solve for x
    x = 2,554,214,854.79/58,497.71
  6. Step 6: Final answer
    x = 43,663.50

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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.