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Finding the Fourth Proportional to 16,877.60, 25,316.40 and 16,618.40

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Solution

The fourth proportional to 16,877.60, 25,316.40 and 16,618.40 is: 24,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,877.60 : 25,316.40 = 16,618.40 : x
  2. Step 2: Convert to fraction form
    16,877.60/25,316.40 = 16,618.40/x
  3. Step 3: Cross multiply
    16,877.60x = 25,316.40 × 16,618.40
  4. Step 4: Simplify right side
    16,877.60x = 420,718,061.76
  5. Step 5: Solve for x
    x = 420,718,061.76/16,877.60
  6. Step 6: Final answer
    x = 24,927.60

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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.