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Finding the Fourth Proportional to 9,693.03, 13,377.86 and 5,918.40

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Solution

The fourth proportional to 9,693.03, 13,377.86 and 5,918.40 is: 8,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,693.03 : 13,377.86 = 5,918.40 : x
  2. Step 2: Convert to fraction form
    9,693.03/13,377.86 = 5,918.40/x
  3. Step 3: Cross multiply
    9,693.03x = 13,377.86 × 5,918.40
  4. Step 4: Simplify right side
    9,693.03x = 79,175,519.23
  5. Step 5: Solve for x
    x = 79,175,519.23/9,693.03
  6. Step 6: Final answer
    x = 8,168.29

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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.