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Finding the Fourth Proportional to 14,915.93, 20,581.98 and 9,248.61

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Solution

The fourth proportional to 14,915.93, 20,581.98 and 9,248.61 is: 12,761.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.93 : 20,581.98 = 9,248.61 : x
  2. Step 2: Convert to fraction form
    14,915.93/20,581.98 = 9,248.61/x
  3. Step 3: Cross multiply
    14,915.93x = 20,581.98 × 9,248.61
  4. Step 4: Simplify right side
    14,915.93x = 190,354,706.05
  5. Step 5: Solve for x
    x = 190,354,706.05/14,915.93
  6. Step 6: Final answer
    x = 12,761.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.