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Finding the Fourth Proportional to 18,464.90, 27,697.50 and 4,613.90

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Solution

The fourth proportional to 18,464.90, 27,697.50 and 4,613.90 is: 6,920.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.90 : 27,697.50 = 4,613.90 : x
  2. Step 2: Convert to fraction form
    18,464.90/27,697.50 = 4,613.90/x
  3. Step 3: Cross multiply
    18,464.90x = 27,697.50 × 4,613.90
  4. Step 4: Simplify right side
    18,464.90x = 127,793,356.76
  5. Step 5: Solve for x
    x = 127,793,356.76/18,464.90
  6. Step 6: Final answer
    x = 6,920.88

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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.