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Finding the Fourth Proportional to 10,963.10, 16,444.65 and 7,245.20

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Solution

The fourth proportional to 10,963.10, 16,444.65 and 7,245.20 is: 10,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.10 : 16,444.65 = 7,245.20 : x
  2. Step 2: Convert to fraction form
    10,963.10/16,444.65 = 7,245.20/x
  3. Step 3: Cross multiply
    10,963.10x = 16,444.65 × 7,245.20
  4. Step 4: Simplify right side
    10,963.10x = 119,144,778.18
  5. Step 5: Solve for x
    x = 119,144,778.18/10,963.10
  6. Step 6: Final answer
    x = 10,867.80

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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.