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Finding the Fourth Proportional to 5,310.11, 7,918.80 and 4,655.03

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Solution

The fourth proportional to 5,310.11, 7,918.80 and 4,655.03 is: 6,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.11 : 7,918.80 = 4,655.03 : x
  2. Step 2: Convert to fraction form
    5,310.11/7,918.80 = 4,655.03/x
  3. Step 3: Cross multiply
    5,310.11x = 7,918.80 × 4,655.03
  4. Step 4: Simplify right side
    5,310.11x = 36,862,211.97
  5. Step 5: Solve for x
    x = 36,862,211.97/5,310.11
  6. Step 6: Final answer
    x = 6,941.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.