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Finding the Fourth Proportional to 7,295.61, 10,067.20 and 4,108.40

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Solution

The fourth proportional to 7,295.61, 10,067.20 and 4,108.40 is: 5,669.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,295.61 : 10,067.20 = 4,108.40 : x
  2. Step 2: Convert to fraction form
    7,295.61/10,067.20 = 4,108.40/x
  3. Step 3: Cross multiply
    7,295.61x = 10,067.20 × 4,108.40
  4. Step 4: Simplify right side
    7,295.61x = 41,360,099.38
  5. Step 5: Solve for x
    x = 41,360,099.38/7,295.61
  6. Step 6: Final answer
    x = 5,669.17

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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.