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Finding the Fourth Proportional to 44,580, 66,854.52 and 12,981.48

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Solution

The fourth proportional to 44,580, 66,854.52 and 12,981.48 is: 19,467.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,580 : 66,854.52 = 12,981.48 : x
  2. Step 2: Convert to fraction form
    44,580/66,854.52 = 12,981.48/x
  3. Step 3: Cross multiply
    44,580x = 66,854.52 × 12,981.48
  4. Step 4: Simplify right side
    44,580x = 867,870,614.29
  5. Step 5: Solve for x
    x = 867,870,614.29/44,580
  6. Step 6: Final answer
    x = 19,467.71

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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.