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Finding the Fourth Proportional to 6,672.90, 9,204.90 and 4,018.68

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Solution

The fourth proportional to 6,672.90, 9,204.90 and 4,018.68 is: 5,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.90 : 9,204.90 = 4,018.68 : x
  2. Step 2: Convert to fraction form
    6,672.90/9,204.90 = 4,018.68/x
  3. Step 3: Cross multiply
    6,672.90x = 9,204.90 × 4,018.68
  4. Step 4: Simplify right side
    6,672.90x = 36,991,547.53
  5. Step 5: Solve for x
    x = 36,991,547.53/6,672.90
  6. Step 6: Final answer
    x = 5,543.55

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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.