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Finding the Fourth Proportional to 24,642.60, 36,987.10 and 12,964.20

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Solution

The fourth proportional to 24,642.60, 36,987.10 and 12,964.20 is: 19,458.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,642.60 : 36,987.10 = 12,964.20 : x
  2. Step 2: Convert to fraction form
    24,642.60/36,987.10 = 12,964.20/x
  3. Step 3: Cross multiply
    24,642.60x = 36,987.10 × 12,964.20
  4. Step 4: Simplify right side
    24,642.60x = 479,508,161.82
  5. Step 5: Solve for x
    x = 479,508,161.82/24,642.60
  6. Step 6: Final answer
    x = 19,458.51

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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.