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Finding the Fourth Proportional to 5,275,657.37, 7,913,473.74 and 3,465,448.76

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Solution

The fourth proportional to 5,275,657.37, 7,913,473.74 and 3,465,448.76 is: 5,198,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275,657.37 : 7,913,473.74 = 3,465,448.76 : x
  2. Step 2: Convert to fraction form
    5,275,657.37/7,913,473.74 = 3,465,448.76/x
  3. Step 3: Cross multiply
    5,275,657.37x = 7,913,473.74 × 3,465,448.76
  4. Step 4: Simplify right side
    5,275,657.37x = 27,423,737,720,008.20
  5. Step 5: Solve for x
    x = 27,423,737,720,008.20/5,275,657.37
  6. Step 6: Final answer
    x = 5,198,165.05

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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.