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Finding the Fourth Proportional to 11,592.40, 17,411.88 and 6,921.52

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Solution

The fourth proportional to 11,592.40, 17,411.88 and 6,921.52 is: 10,396.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,592.40 : 17,411.88 = 6,921.52 : x
  2. Step 2: Convert to fraction form
    11,592.40/17,411.88 = 6,921.52/x
  3. Step 3: Cross multiply
    11,592.40x = 17,411.88 × 6,921.52
  4. Step 4: Simplify right side
    11,592.40x = 120,516,675.66
  5. Step 5: Solve for x
    x = 120,516,675.66/11,592.40
  6. Step 6: Final answer
    x = 10,396.18

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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.