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Finding the Fourth Proportional to 6,672.60, 9,208.70 and 4,019.96

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Solution

The fourth proportional to 6,672.60, 9,208.70 and 4,019.96 is: 5,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.60 : 9,208.70 = 4,019.96 : x
  2. Step 2: Convert to fraction form
    6,672.60/9,208.70 = 4,019.96/x
  3. Step 3: Cross multiply
    6,672.60x = 9,208.70 × 4,019.96
  4. Step 4: Simplify right side
    6,672.60x = 37,018,605.65
  5. Step 5: Solve for x
    x = 37,018,605.65/6,672.60
  6. Step 6: Final answer
    x = 5,547.85

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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.