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Finding the Fourth Proportional to 6,668,741.90, 9,202,872.90 and 3,612,956.15

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Solution

The fourth proportional to 6,668,741.90, 9,202,872.90 and 3,612,956.15 is: 4,985,884.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668,741.90 : 9,202,872.90 = 3,612,956.15 : x
  2. Step 2: Convert to fraction form
    6,668,741.90/9,202,872.90 = 3,612,956.15/x
  3. Step 3: Cross multiply
    6,668,741.90x = 9,202,872.90 × 3,612,956.15
  4. Step 4: Simplify right side
    6,668,741.90x = 33,249,576,241,723.34
  5. Step 5: Solve for x
    x = 33,249,576,241,723.34/6,668,741.90
  6. Step 6: Final answer
    x = 4,985,884.41

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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.