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Finding the Fourth Proportional to 7,026,694.80, 10,543,978.80 and 2,982,494.40

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Solution

The fourth proportional to 7,026,694.80, 10,543,978.80 and 2,982,494.40 is: 4,475,412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,026,694.80 : 10,543,978.80 = 2,982,494.40 : x
  2. Step 2: Convert to fraction form
    7,026,694.80/10,543,978.80 = 2,982,494.40/x
  3. Step 3: Cross multiply
    7,026,694.80x = 10,543,978.80 × 2,982,494.40
  4. Step 4: Simplify right side
    7,026,694.80x = 31,447,357,724,718.72
  5. Step 5: Solve for x
    x = 31,447,357,724,718.72/7,026,694.80
  6. Step 6: Final answer
    x = 4,475,412.50

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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.