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Finding the Fourth Proportional to 10,720.52, 16,081.14 and 9,503.09

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Solution

The fourth proportional to 10,720.52, 16,081.14 and 9,503.09 is: 14,254.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.52 : 16,081.14 = 9,503.09 : x
  2. Step 2: Convert to fraction form
    10,720.52/16,081.14 = 9,503.09/x
  3. Step 3: Cross multiply
    10,720.52x = 16,081.14 × 9,503.09
  4. Step 4: Simplify right side
    10,720.52x = 152,820,520.72
  5. Step 5: Solve for x
    x = 152,820,520.72/10,720.52
  6. Step 6: Final answer
    x = 14,254.95

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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.