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Finding the Fourth Proportional to 56,358.40, 84,531.20 and 14,809.60

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Solution

The fourth proportional to 56,358.40, 84,531.20 and 14,809.60 is: 22,212.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.40 : 84,531.20 = 14,809.60 : x
  2. Step 2: Convert to fraction form
    56,358.40/84,531.20 = 14,809.60/x
  3. Step 3: Cross multiply
    56,358.40x = 84,531.20 × 14,809.60
  4. Step 4: Simplify right side
    56,358.40x = 1,251,873,259.52
  5. Step 5: Solve for x
    x = 1,251,873,259.52/56,358.40
  6. Step 6: Final answer
    x = 22,212.72

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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.