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Finding the Fourth Proportional to 7,281.59, 10,048.59 and 4,138.38

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Solution

The fourth proportional to 7,281.59, 10,048.59 and 4,138.38 is: 5,710.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.59 : 10,048.59 = 4,138.38 : x
  2. Step 2: Convert to fraction form
    7,281.59/10,048.59 = 4,138.38/x
  3. Step 3: Cross multiply
    7,281.59x = 10,048.59 × 4,138.38
  4. Step 4: Simplify right side
    7,281.59x = 41,584,883.88
  5. Step 5: Solve for x
    x = 41,584,883.88/7,281.59
  6. Step 6: Final answer
    x = 5,710.97

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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.