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Finding the Fourth Proportional to 40,317.20, 60,475.80 and 35,862.80

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Solution

The fourth proportional to 40,317.20, 60,475.80 and 35,862.80 is: 53,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,317.20 : 60,475.80 = 35,862.80 : x
  2. Step 2: Convert to fraction form
    40,317.20/60,475.80 = 35,862.80/x
  3. Step 3: Cross multiply
    40,317.20x = 60,475.80 × 35,862.80
  4. Step 4: Simplify right side
    40,317.20x = 2,168,831,520.24
  5. Step 5: Solve for x
    x = 2,168,831,520.24/40,317.20
  6. Step 6: Final answer
    x = 53,794.20

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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.