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Finding the Fourth Proportional to 10,911.68, 15,058.12 and 5,943.68

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Solution

The fourth proportional to 10,911.68, 15,058.12 and 5,943.68 is: 8,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.68 : 15,058.12 = 5,943.68 : x
  2. Step 2: Convert to fraction form
    10,911.68/15,058.12 = 5,943.68/x
  3. Step 3: Cross multiply
    10,911.68x = 15,058.12 × 5,943.68
  4. Step 4: Simplify right side
    10,911.68x = 89,500,646.68
  5. Step 5: Solve for x
    x = 89,500,646.68/10,911.68
  6. Step 6: Final answer
    x = 8,202.28

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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.