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Finding the Fourth Proportional to 16,505.60, 24,758.40 and 9,928.40

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Solution

The fourth proportional to 16,505.60, 24,758.40 and 9,928.40 is: 14,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,505.60 : 24,758.40 = 9,928.40 : x
  2. Step 2: Convert to fraction form
    16,505.60/24,758.40 = 9,928.40/x
  3. Step 3: Cross multiply
    16,505.60x = 24,758.40 × 9,928.40
  4. Step 4: Simplify right side
    16,505.60x = 245,811,298.56
  5. Step 5: Solve for x
    x = 245,811,298.56/16,505.60
  6. Step 6: Final answer
    x = 14,892.60

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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.