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Finding the Fourth Proportional to 60,188.97, 90,299.79 and 18,070.86

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Solution

The fourth proportional to 60,188.97, 90,299.79 and 18,070.86 is: 27,111.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,188.97 : 90,299.79 = 18,070.86 : x
  2. Step 2: Convert to fraction form
    60,188.97/90,299.79 = 18,070.86/x
  3. Step 3: Cross multiply
    60,188.97x = 90,299.79 × 18,070.86
  4. Step 4: Simplify right side
    60,188.97x = 1,631,794,863.12
  5. Step 5: Solve for x
    x = 1,631,794,863.12/60,188.97
  6. Step 6: Final answer
    x = 27,111.19

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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.