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Finding the Fourth Proportional to 10,382.88, 15,591.60 and 10,302.24

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Solution

The fourth proportional to 10,382.88, 15,591.60 and 10,302.24 is: 15,470.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.88 : 15,591.60 = 10,302.24 : x
  2. Step 2: Convert to fraction form
    10,382.88/15,591.60 = 10,302.24/x
  3. Step 3: Cross multiply
    10,382.88x = 15,591.60 × 10,302.24
  4. Step 4: Simplify right side
    10,382.88x = 160,628,405.18
  5. Step 5: Solve for x
    x = 160,628,405.18/10,382.88
  6. Step 6: Final answer
    x = 15,470.51

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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.