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Finding the Fourth Proportional to 5,918.24, 8,878.92 and 5,031.44

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Solution

The fourth proportional to 5,918.24, 8,878.92 and 5,031.44 is: 7,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.24 : 8,878.92 = 5,031.44 : x
  2. Step 2: Convert to fraction form
    5,918.24/8,878.92 = 5,031.44/x
  3. Step 3: Cross multiply
    5,918.24x = 8,878.92 × 5,031.44
  4. Step 4: Simplify right side
    5,918.24x = 44,673,753.24
  5. Step 5: Solve for x
    x = 44,673,753.24/5,918.24
  6. Step 6: Final answer
    x = 7,548.49

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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.