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Finding the Fourth Proportional to 15,651.12, 23,479.08 and 5,655.12

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Solution

The fourth proportional to 15,651.12, 23,479.08 and 5,655.12 is: 8,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651.12 : 23,479.08 = 5,655.12 : x
  2. Step 2: Convert to fraction form
    15,651.12/23,479.08 = 5,655.12/x
  3. Step 3: Cross multiply
    15,651.12x = 23,479.08 × 5,655.12
  4. Step 4: Simplify right side
    15,651.12x = 132,777,014.89
  5. Step 5: Solve for x
    x = 132,777,014.89/15,651.12
  6. Step 6: Final answer
    x = 8,483.55

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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.