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Finding the Fourth Proportional to 7,393,756.80, 11,071,972.80 and 4,855,670.40

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Solution

The fourth proportional to 7,393,756.80, 11,071,972.80 and 4,855,670.40 is: 7,271,249.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,393,756.80 : 11,071,972.80 = 4,855,670.40 : x
  2. Step 2: Convert to fraction form
    7,393,756.80/11,071,972.80 = 4,855,670.40/x
  3. Step 3: Cross multiply
    7,393,756.80x = 11,071,972.80 × 4,855,670.40
  4. Step 4: Simplify right side
    7,393,756.80x = 53,761,850,594,565.12
  5. Step 5: Solve for x
    x = 53,761,850,594,565.12/7,393,756.80
  6. Step 6: Final answer
    x = 7,271,249.52

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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.