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Finding the Fourth Proportional to 3,859.68, 5,792.32 and 2,624.16

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Solution

The fourth proportional to 3,859.68, 5,792.32 and 2,624.16 is: 3,938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.68 : 5,792.32 = 2,624.16 : x
  2. Step 2: Convert to fraction form
    3,859.68/5,792.32 = 2,624.16/x
  3. Step 3: Cross multiply
    3,859.68x = 5,792.32 × 2,624.16
  4. Step 4: Simplify right side
    3,859.68x = 15,199,974.45
  5. Step 5: Solve for x
    x = 15,199,974.45/3,859.68
  6. Step 6: Final answer
    x = 3,938.14

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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.