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Finding the Fourth Proportional to 9,479.70, 14,208.48 and 7,132.16

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Solution

The fourth proportional to 9,479.70, 14,208.48 and 7,132.16 is: 10,689.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.70 : 14,208.48 = 7,132.16 : x
  2. Step 2: Convert to fraction form
    9,479.70/14,208.48 = 7,132.16/x
  3. Step 3: Cross multiply
    9,479.70x = 14,208.48 × 7,132.16
  4. Step 4: Simplify right side
    9,479.70x = 101,337,178.13
  5. Step 5: Solve for x
    x = 101,337,178.13/9,479.70
  6. Step 6: Final answer
    x = 10,689.92

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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.