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Finding the Fourth Proportional to 4,969.13, 6,854.87 and 3,788.15

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Solution

The fourth proportional to 4,969.13, 6,854.87 and 3,788.15 is: 5,225.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.13 : 6,854.87 = 3,788.15 : x
  2. Step 2: Convert to fraction form
    4,969.13/6,854.87 = 3,788.15/x
  3. Step 3: Cross multiply
    4,969.13x = 6,854.87 × 3,788.15
  4. Step 4: Simplify right side
    4,969.13x = 25,967,253.92
  5. Step 5: Solve for x
    x = 25,967,253.92/4,969.13
  6. Step 6: Final answer
    x = 5,225.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.