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Finding the Fourth Proportional to 16,923.20, 25,384.80 and 4,442.40

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Solution

The fourth proportional to 16,923.20, 25,384.80 and 4,442.40 is: 6,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,923.20 : 25,384.80 = 4,442.40 : x
  2. Step 2: Convert to fraction form
    16,923.20/25,384.80 = 4,442.40/x
  3. Step 3: Cross multiply
    16,923.20x = 25,384.80 × 4,442.40
  4. Step 4: Simplify right side
    16,923.20x = 112,769,435.52
  5. Step 5: Solve for x
    x = 112,769,435.52/16,923.20
  6. Step 6: Final answer
    x = 6,663.60

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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.