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Finding the Fourth Proportional to 60,083.40, 90,129.92 and 17,960.40

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Solution

The fourth proportional to 60,083.40, 90,129.92 and 17,960.40 is: 26,942.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,083.40 : 90,129.92 = 17,960.40 : x
  2. Step 2: Convert to fraction form
    60,083.40/90,129.92 = 17,960.40/x
  3. Step 3: Cross multiply
    60,083.40x = 90,129.92 × 17,960.40
  4. Step 4: Simplify right side
    60,083.40x = 1,618,769,415.17
  5. Step 5: Solve for x
    x = 1,618,769,415.17/60,083.40
  6. Step 6: Final answer
    x = 26,942.04

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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.