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Finding the Fourth Proportional to 74,760.71, 112,162.71 and 22,171.46

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Solution

The fourth proportional to 74,760.71, 112,162.71 and 22,171.46 is: 33,263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,760.71 : 112,162.71 = 22,171.46 : x
  2. Step 2: Convert to fraction form
    74,760.71/112,162.71 = 22,171.46/x
  3. Step 3: Cross multiply
    74,760.71x = 112,162.71 × 22,171.46
  4. Step 4: Simplify right side
    74,760.71x = 2,486,811,038.26
  5. Step 5: Solve for x
    x = 2,486,811,038.26/74,760.71
  6. Step 6: Final answer
    x = 33,263.61

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1.5x scale

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.