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Finding the Fourth Proportional to 8,693.70, 11,993.58 and 5,862.90

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Solution

The fourth proportional to 8,693.70, 11,993.58 and 5,862.90 is: 8,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.70 : 11,993.58 = 5,862.90 : x
  2. Step 2: Convert to fraction form
    8,693.70/11,993.58 = 5,862.90/x
  3. Step 3: Cross multiply
    8,693.70x = 11,993.58 × 5,862.90
  4. Step 4: Simplify right side
    8,693.70x = 70,317,160.18
  5. Step 5: Solve for x
    x = 70,317,160.18/8,693.70
  6. Step 6: Final answer
    x = 8,088.29

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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.