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Finding the Fourth Proportional to 7,098,004.20, 10,647,006.30 and 7,098,004.20

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Solution

The fourth proportional to 7,098,004.20, 10,647,006.30 and 7,098,004.20 is: 10,647,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098,004.20 : 10,647,006.30 = 7,098,004.20 : x
  2. Step 2: Convert to fraction form
    7,098,004.20/10,647,006.30 = 7,098,004.20/x
  3. Step 3: Cross multiply
    7,098,004.20x = 10,647,006.30 × 7,098,004.20
  4. Step 4: Simplify right side
    7,098,004.20x = 75,572,495,434,826.47
  5. Step 5: Solve for x
    x = 75,572,495,434,826.47/7,098,004.20
  6. Step 6: Final answer
    x = 10,647,006.30

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Similar ratio
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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.