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Finding the Fourth Proportional to 48,267.70, 72,401.55 and 40,102.90

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Solution

The fourth proportional to 48,267.70, 72,401.55 and 40,102.90 is: 60,154.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,267.70 : 72,401.55 = 40,102.90 : x
  2. Step 2: Convert to fraction form
    48,267.70/72,401.55 = 40,102.90/x
  3. Step 3: Cross multiply
    48,267.70x = 72,401.55 × 40,102.90
  4. Step 4: Simplify right side
    48,267.70x = 2,903,512,119.50
  5. Step 5: Solve for x
    x = 2,903,512,119.50/48,267.70
  6. Step 6: Final answer
    x = 60,154.35

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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.