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Finding the Fourth Proportional to 2,909.04, 4,379.10 and 2,507.10

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Solution

The fourth proportional to 2,909.04, 4,379.10 and 2,507.10 is: 3,774.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.04 : 4,379.10 = 2,507.10 : x
  2. Step 2: Convert to fraction form
    2,909.04/4,379.10 = 2,507.10/x
  3. Step 3: Cross multiply
    2,909.04x = 4,379.10 × 2,507.10
  4. Step 4: Simplify right side
    2,909.04x = 10,978,841.61
  5. Step 5: Solve for x
    x = 10,978,841.61/2,909.04
  6. Step 6: Final answer
    x = 3,774.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.