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Finding the Fourth Proportional to 6,397,011.60, 9,581,520.60 and 5,557,203.60

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Solution

The fourth proportional to 6,397,011.60, 9,581,520.60 and 5,557,203.60 is: 8,323,646.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,397,011.60 : 9,581,520.60 = 5,557,203.60 : x
  2. Step 2: Convert to fraction form
    6,397,011.60/9,581,520.60 = 5,557,203.60/x
  3. Step 3: Cross multiply
    6,397,011.60x = 9,581,520.60 × 5,557,203.60
  4. Step 4: Simplify right side
    6,397,011.60x = 53,246,460,771,794.16
  5. Step 5: Solve for x
    x = 53,246,460,771,794.16/6,397,011.60
  6. Step 6: Final answer
    x = 8,323,646.12

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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.