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Finding the Fourth Proportional to 22,053.60, 33,071.12 and 8,902.40

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Solution

The fourth proportional to 22,053.60, 33,071.12 and 8,902.40 is: 13,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,053.60 : 33,071.12 = 8,902.40 : x
  2. Step 2: Convert to fraction form
    22,053.60/33,071.12 = 8,902.40/x
  3. Step 3: Cross multiply
    22,053.60x = 33,071.12 × 8,902.40
  4. Step 4: Simplify right side
    22,053.60x = 294,412,338.69
  5. Step 5: Solve for x
    x = 294,412,338.69/22,053.60
  6. Step 6: Final answer
    x = 13,349.85

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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.