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Finding the Fourth Proportional to 10,473.72, 15,680.88 and 9,488.32

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Solution

The fourth proportional to 10,473.72, 15,680.88 and 9,488.32 is: 14,205.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,473.72 : 15,680.88 = 9,488.32 : x
  2. Step 2: Convert to fraction form
    10,473.72/15,680.88 = 9,488.32/x
  3. Step 3: Cross multiply
    10,473.72x = 15,680.88 × 9,488.32
  4. Step 4: Simplify right side
    10,473.72x = 148,785,207.32
  5. Step 5: Solve for x
    x = 148,785,207.32/10,473.72
  6. Step 6: Final answer
    x = 14,205.57

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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.