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Finding the Fourth Proportional to 22,312.72, 33,463.48 and 9,168.72

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Solution

The fourth proportional to 22,312.72, 33,463.48 and 9,168.72 is: 13,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.72 : 33,463.48 = 9,168.72 : x
  2. Step 2: Convert to fraction form
    22,312.72/33,463.48 = 9,168.72/x
  3. Step 3: Cross multiply
    22,312.72x = 33,463.48 × 9,168.72
  4. Step 4: Simplify right side
    22,312.72x = 306,817,278.35
  5. Step 5: Solve for x
    x = 306,817,278.35/22,312.72
  6. Step 6: Final answer
    x = 13,750.78

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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.