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Finding the Fourth Proportional to 34,332.80, 51,499.20 and 10,961.60

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Solution

The fourth proportional to 34,332.80, 51,499.20 and 10,961.60 is: 16,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,332.80 : 51,499.20 = 10,961.60 : x
  2. Step 2: Convert to fraction form
    34,332.80/51,499.20 = 10,961.60/x
  3. Step 3: Cross multiply
    34,332.80x = 51,499.20 × 10,961.60
  4. Step 4: Simplify right side
    34,332.80x = 564,513,630.72
  5. Step 5: Solve for x
    x = 564,513,630.72/34,332.80
  6. Step 6: Final answer
    x = 16,442.40

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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.