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Finding the Fourth Proportional to 6,518,583.60, 9,781,374.60 and 2,732,449.20

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Solution

The fourth proportional to 6,518,583.60, 9,781,374.60 and 2,732,449.20 is: 4,100,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518,583.60 : 9,781,374.60 = 2,732,449.20 : x
  2. Step 2: Convert to fraction form
    6,518,583.60/9,781,374.60 = 2,732,449.20/x
  3. Step 3: Cross multiply
    6,518,583.60x = 9,781,374.60 × 2,732,449.20
  4. Step 4: Simplify right side
    6,518,583.60x = 26,727,109,200,670.32
  5. Step 5: Solve for x
    x = 26,727,109,200,670.32/6,518,583.60
  6. Step 6: Final answer
    x = 4,100,140.59

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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.