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Finding the Fourth Proportional to 72,404.40, 108,616.68 and 22,488.30

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Solution

The fourth proportional to 72,404.40, 108,616.68 and 22,488.30 is: 33,735.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,404.40 : 108,616.68 = 22,488.30 : x
  2. Step 2: Convert to fraction form
    72,404.40/108,616.68 = 22,488.30/x
  3. Step 3: Cross multiply
    72,404.40x = 108,616.68 × 22,488.30
  4. Step 4: Simplify right side
    72,404.40x = 2,442,604,484.84
  5. Step 5: Solve for x
    x = 2,442,604,484.84/72,404.40
  6. Step 6: Final answer
    x = 33,735.58

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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.