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Finding the Fourth Proportional to 7,345,107.20, 10,293,778.90 and 7,345,107.20

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Solution

The fourth proportional to 7,345,107.20, 10,293,778.90 and 7,345,107.20 is: 10,293,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345,107.20 : 10,293,778.90 = 7,345,107.20 : x
  2. Step 2: Convert to fraction form
    7,345,107.20/10,293,778.90 = 7,345,107.20/x
  3. Step 3: Cross multiply
    7,345,107.20x = 10,293,778.90 × 7,345,107.20
  4. Step 4: Simplify right side
    7,345,107.20x = 75,608,909,513,598.08
  5. Step 5: Solve for x
    x = 75,608,909,513,598.08/7,345,107.20
  6. Step 6: Final answer
    x = 10,293,778.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.