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Finding the Fourth Proportional to 40,292.70, 60,424.65 and 18,116.70

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Solution

The fourth proportional to 40,292.70, 60,424.65 and 18,116.70 is: 27,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,292.70 : 60,424.65 = 18,116.70 : x
  2. Step 2: Convert to fraction form
    40,292.70/60,424.65 = 18,116.70/x
  3. Step 3: Cross multiply
    40,292.70x = 60,424.65 × 18,116.70
  4. Step 4: Simplify right side
    40,292.70x = 1,094,695,256.66
  5. Step 5: Solve for x
    x = 1,094,695,256.66/40,292.70
  6. Step 6: Final answer
    x = 27,168.58

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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.