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Finding the Fourth Proportional to 56,489.74, 84,631.33 and 26,448.87

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Solution

The fourth proportional to 56,489.74, 84,631.33 and 26,448.87 is: 39,624.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,489.74 : 84,631.33 = 26,448.87 : x
  2. Step 2: Convert to fraction form
    56,489.74/84,631.33 = 26,448.87/x
  3. Step 3: Cross multiply
    56,489.74x = 84,631.33 × 26,448.87
  4. Step 4: Simplify right side
    56,489.74x = 2,238,403,045.10
  5. Step 5: Solve for x
    x = 2,238,403,045.10/56,489.74
  6. Step 6: Final answer
    x = 39,624.95

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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.