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Finding the Fourth Proportional to 16,509.60, 24,764.40 and 6,119.20

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Solution

The fourth proportional to 16,509.60, 24,764.40 and 6,119.20 is: 9,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,509.60 : 24,764.40 = 6,119.20 : x
  2. Step 2: Convert to fraction form
    16,509.60/24,764.40 = 6,119.20/x
  3. Step 3: Cross multiply
    16,509.60x = 24,764.40 × 6,119.20
  4. Step 4: Simplify right side
    16,509.60x = 151,538,316.48
  5. Step 5: Solve for x
    x = 151,538,316.48/16,509.60
  6. Step 6: Final answer
    x = 9,178.80

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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.