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Finding the Fourth Proportional to 44,449.92, 66,678.88 and 12,859.52

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Solution

The fourth proportional to 44,449.92, 66,678.88 and 12,859.52 is: 19,290.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,449.92 : 66,678.88 = 12,859.52 : x
  2. Step 2: Convert to fraction form
    44,449.92/66,678.88 = 12,859.52/x
  3. Step 3: Cross multiply
    44,449.92x = 66,678.88 × 12,859.52
  4. Step 4: Simplify right side
    44,449.92x = 857,458,390.94
  5. Step 5: Solve for x
    x = 857,458,390.94/44,449.92
  6. Step 6: Final answer
    x = 19,290.44

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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.