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Finding the Fourth Proportional to 9,426.76, 14,132.80 and 4,229

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Solution

The fourth proportional to 9,426.76, 14,132.80 and 4,229 is: 6,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,426.76 : 14,132.80 = 4,229 : x
  2. Step 2: Convert to fraction form
    9,426.76/14,132.80 = 4,229/x
  3. Step 3: Cross multiply
    9,426.76x = 14,132.80 × 4,229
  4. Step 4: Simplify right side
    9,426.76x = 59,767,611.20
  5. Step 5: Solve for x
    x = 59,767,611.20/9,426.76
  6. Step 6: Final answer
    x = 6,340.21

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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.