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Finding the Fourth Proportional to 10,080.80, 15,110.88 and 9,827.84

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Solution

The fourth proportional to 10,080.80, 15,110.88 and 9,827.84 is: 14,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.80 : 15,110.88 = 9,827.84 : x
  2. Step 2: Convert to fraction form
    10,080.80/15,110.88 = 9,827.84/x
  3. Step 3: Cross multiply
    10,080.80x = 15,110.88 × 9,827.84
  4. Step 4: Simplify right side
    10,080.80x = 148,507,310.90
  5. Step 5: Solve for x
    x = 148,507,310.90/10,080.80
  6. Step 6: Final answer
    x = 14,731.70

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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.