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Finding the Fourth Proportional to 40,099.53, 60,159.54 and 12,019.50

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Solution

The fourth proportional to 40,099.53, 60,159.54 and 12,019.50 is: 18,032.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,099.53 : 60,159.54 = 12,019.50 : x
  2. Step 2: Convert to fraction form
    40,099.53/60,159.54 = 12,019.50/x
  3. Step 3: Cross multiply
    40,099.53x = 60,159.54 × 12,019.50
  4. Step 4: Simplify right side
    40,099.53x = 723,087,591.03
  5. Step 5: Solve for x
    x = 723,087,591.03/40,099.53
  6. Step 6: Final answer
    x = 18,032.32

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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.