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Finding the Fourth Proportional to 8,651.16, 11,939.24 and 5,114.28

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Solution

The fourth proportional to 8,651.16, 11,939.24 and 5,114.28 is: 7,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.16 : 11,939.24 = 5,114.28 : x
  2. Step 2: Convert to fraction form
    8,651.16/11,939.24 = 5,114.28/x
  3. Step 3: Cross multiply
    8,651.16x = 11,939.24 × 5,114.28
  4. Step 4: Simplify right side
    8,651.16x = 61,060,616.35
  5. Step 5: Solve for x
    x = 61,060,616.35/8,651.16
  6. Step 6: Final answer
    x = 7,058.08

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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.