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Finding the Fourth Proportional to 9,747.40, 14,624.70 and 9,387.40

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Solution

The fourth proportional to 9,747.40, 14,624.70 and 9,387.40 is: 14,084.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,747.40 : 14,624.70 = 9,387.40 : x
  2. Step 2: Convert to fraction form
    9,747.40/14,624.70 = 9,387.40/x
  3. Step 3: Cross multiply
    9,747.40x = 14,624.70 × 9,387.40
  4. Step 4: Simplify right side
    9,747.40x = 137,287,908.78
  5. Step 5: Solve for x
    x = 137,287,908.78/9,747.40
  6. Step 6: Final answer
    x = 14,084.57

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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.