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Finding the Fourth Proportional to 8,648.19, 11,934.80 and 5,114.43

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Solution

The fourth proportional to 8,648.19, 11,934.80 and 5,114.43 is: 7,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.19 : 11,934.80 = 5,114.43 : x
  2. Step 2: Convert to fraction form
    8,648.19/11,934.80 = 5,114.43/x
  3. Step 3: Cross multiply
    8,648.19x = 11,934.80 × 5,114.43
  4. Step 4: Simplify right side
    8,648.19x = 61,039,673.59
  5. Step 5: Solve for x
    x = 61,039,673.59/8,648.19
  6. Step 6: Final answer
    x = 7,058.09

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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.