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Finding the Fourth Proportional to 32,991.84, 49,488.48 and 12,215.52

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Solution

The fourth proportional to 32,991.84, 49,488.48 and 12,215.52 is: 18,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,991.84 : 49,488.48 = 12,215.52 : x
  2. Step 2: Convert to fraction form
    32,991.84/49,488.48 = 12,215.52/x
  3. Step 3: Cross multiply
    32,991.84x = 49,488.48 × 12,215.52
  4. Step 4: Simplify right side
    32,991.84x = 604,527,517.21
  5. Step 5: Solve for x
    x = 604,527,517.21/32,991.84
  6. Step 6: Final answer
    x = 18,323.55

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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.