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Finding the Fourth Proportional to 10,581.93, 15,873.95 and 3,920.22

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Solution

The fourth proportional to 10,581.93, 15,873.95 and 3,920.22 is: 5,880.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.93 : 15,873.95 = 3,920.22 : x
  2. Step 2: Convert to fraction form
    10,581.93/15,873.95 = 3,920.22/x
  3. Step 3: Cross multiply
    10,581.93x = 15,873.95 × 3,920.22
  4. Step 4: Simplify right side
    10,581.93x = 62,229,376.27
  5. Step 5: Solve for x
    x = 62,229,376.27/10,581.93
  6. Step 6: Final answer
    x = 5,880.72

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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.