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Finding the Fourth Proportional to 4,697.98, 7,030.65 and 2,918.31

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Solution

The fourth proportional to 4,697.98, 7,030.65 and 2,918.31 is: 4,367.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,697.98 : 7,030.65 = 2,918.31 : x
  2. Step 2: Convert to fraction form
    4,697.98/7,030.65 = 2,918.31/x
  3. Step 3: Cross multiply
    4,697.98x = 7,030.65 × 2,918.31
  4. Step 4: Simplify right side
    4,697.98x = 20,517,627.55
  5. Step 5: Solve for x
    x = 20,517,627.55/4,697.98
  6. Step 6: Final answer
    x = 4,367.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.