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Finding the Fourth Proportional to 66,492.20, 99,811.20 and 41,560.40

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Solution

The fourth proportional to 66,492.20, 99,811.20 and 41,560.40 is: 62,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,492.20 : 99,811.20 = 41,560.40 : x
  2. Step 2: Convert to fraction form
    66,492.20/99,811.20 = 41,560.40/x
  3. Step 3: Cross multiply
    66,492.20x = 99,811.20 × 41,560.40
  4. Step 4: Simplify right side
    66,492.20x = 4,148,193,396.48
  5. Step 5: Solve for x
    x = 4,148,193,396.48/66,492.20
  6. Step 6: Final answer
    x = 62,386.17

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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.