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Finding the Fourth Proportional to 22,294.68, 30,780.64 and 14,350.72

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Solution

The fourth proportional to 22,294.68, 30,780.64 and 14,350.72 is: 19,812.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,294.68 : 30,780.64 = 14,350.72 : x
  2. Step 2: Convert to fraction form
    22,294.68/30,780.64 = 14,350.72/x
  3. Step 3: Cross multiply
    22,294.68x = 30,780.64 × 14,350.72
  4. Step 4: Simplify right side
    22,294.68x = 441,724,346.06
  5. Step 5: Solve for x
    x = 441,724,346.06/22,294.68
  6. Step 6: Final answer
    x = 19,812.99

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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.