Home / 10,475.32-15,715.68-3,080.02

Finding the Fourth Proportional to 10,475.32, 15,715.68 and 3,080.02

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Solution

The fourth proportional to 10,475.32, 15,715.68 and 3,080.02 is: 4,620.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,475.32 : 15,715.68 = 3,080.02 : x
  2. Step 2: Convert to fraction form
    10,475.32/15,715.68 = 3,080.02/x
  3. Step 3: Cross multiply
    10,475.32x = 15,715.68 × 3,080.02
  4. Step 4: Simplify right side
    10,475.32x = 48,404,608.71
  5. Step 5: Solve for x
    x = 48,404,608.71/10,475.32
  6. Step 6: Final answer
    x = 4,620.82

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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.