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Finding the Fourth Proportional to 16,869.60, 25,304.40 and 16,610.40

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Solution

The fourth proportional to 16,869.60, 25,304.40 and 16,610.40 is: 24,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,869.60 : 25,304.40 = 16,610.40 : x
  2. Step 2: Convert to fraction form
    16,869.60/25,304.40 = 16,610.40/x
  3. Step 3: Cross multiply
    16,869.60x = 25,304.40 × 16,610.40
  4. Step 4: Simplify right side
    16,869.60x = 420,316,205.76
  5. Step 5: Solve for x
    x = 420,316,205.76/16,869.60
  6. Step 6: Final answer
    x = 24,915.60

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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.