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Finding the Fourth Proportional to 22,007.61, 30,368.93 and 12,575.97

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Solution

The fourth proportional to 22,007.61, 30,368.93 and 12,575.97 is: 17,353.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,007.61 : 30,368.93 = 12,575.97 : x
  2. Step 2: Convert to fraction form
    22,007.61/30,368.93 = 12,575.97/x
  3. Step 3: Cross multiply
    22,007.61x = 30,368.93 × 12,575.97
  4. Step 4: Simplify right side
    22,007.61x = 381,918,689.73
  5. Step 5: Solve for x
    x = 381,918,689.73/22,007.61
  6. Step 6: Final answer
    x = 17,353.94

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1.5x scale

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.