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Finding the Fourth Proportional to 15,655.77, 23,475.15 and 7,213.14

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Solution

The fourth proportional to 15,655.77, 23,475.15 and 7,213.14 is: 10,815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.77 : 23,475.15 = 7,213.14 : x
  2. Step 2: Convert to fraction form
    15,655.77/23,475.15 = 7,213.14/x
  3. Step 3: Cross multiply
    15,655.77x = 23,475.15 × 7,213.14
  4. Step 4: Simplify right side
    15,655.77x = 169,329,543.47
  5. Step 5: Solve for x
    x = 169,329,543.47/15,655.77
  6. Step 6: Final answer
    x = 10,815.79

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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.