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Finding the Fourth Proportional to 5,339.59, 7,368.49 and 2,949.74

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Solution

The fourth proportional to 5,339.59, 7,368.49 and 2,949.74 is: 4,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.59 : 7,368.49 = 2,949.74 : x
  2. Step 2: Convert to fraction form
    5,339.59/7,368.49 = 2,949.74/x
  3. Step 3: Cross multiply
    5,339.59x = 7,368.49 × 2,949.74
  4. Step 4: Simplify right side
    5,339.59x = 21,735,129.69
  5. Step 5: Solve for x
    x = 21,735,129.69/5,339.59
  6. Step 6: Final answer
    x = 4,070.56

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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.