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Finding the Fourth Proportional to 8,899,347.56, 12,281,358.69 and 5,031,785.66

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Solution

The fourth proportional to 8,899,347.56, 12,281,358.69 and 5,031,785.66 is: 6,944,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899,347.56 : 12,281,358.69 = 5,031,785.66 : x
  2. Step 2: Convert to fraction form
    8,899,347.56/12,281,358.69 = 5,031,785.66/x
  3. Step 3: Cross multiply
    8,899,347.56x = 12,281,358.69 × 5,031,785.66
  4. Step 4: Simplify right side
    8,899,347.56x = 61,797,164,480,251.59
  5. Step 5: Solve for x
    x = 61,797,164,480,251.59/8,899,347.56
  6. Step 6: Final answer
    x = 6,944,010.68

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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.