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Finding the Fourth Proportional to 32,691.88, 48,994.78 and 12,959.68

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Solution

The fourth proportional to 32,691.88, 48,994.78 and 12,959.68 is: 19,422.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,691.88 : 48,994.78 = 12,959.68 : x
  2. Step 2: Convert to fraction form
    32,691.88/48,994.78 = 12,959.68/x
  3. Step 3: Cross multiply
    32,691.88x = 48,994.78 × 12,959.68
  4. Step 4: Simplify right side
    32,691.88x = 634,956,670.47
  5. Step 5: Solve for x
    x = 634,956,670.47/32,691.88
  6. Step 6: Final answer
    x = 19,422.46

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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.