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Finding the Fourth Proportional to 44,569.93, 66,856.11 and 12,978.73

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Solution

The fourth proportional to 44,569.93, 66,856.11 and 12,978.73 is: 19,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,569.93 : 66,856.11 = 12,978.73 : x
  2. Step 2: Convert to fraction form
    44,569.93/66,856.11 = 12,978.73/x
  3. Step 3: Cross multiply
    44,569.93x = 66,856.11 × 12,978.73
  4. Step 4: Simplify right side
    44,569.93x = 867,707,400.54
  5. Step 5: Solve for x
    x = 867,707,400.54/44,569.93
  6. Step 6: Final answer
    x = 19,468.45

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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.