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Finding the Fourth Proportional to 16,291.60, 24,437.40 and 8,515.60

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Solution

The fourth proportional to 16,291.60, 24,437.40 and 8,515.60 is: 12,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,291.60 : 24,437.40 = 8,515.60 : x
  2. Step 2: Convert to fraction form
    16,291.60/24,437.40 = 8,515.60/x
  3. Step 3: Cross multiply
    16,291.60x = 24,437.40 × 8,515.60
  4. Step 4: Simplify right side
    16,291.60x = 208,099,123.44
  5. Step 5: Solve for x
    x = 208,099,123.44/16,291.60
  6. Step 6: Final answer
    x = 12,773.40

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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.