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Finding the Fourth Proportional to 5,640,660.72, 7,776,593.64 and 4,482,972.72

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Solution

The fourth proportional to 5,640,660.72, 7,776,593.64 and 4,482,972.72 is: 6,180,527.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640,660.72 : 7,776,593.64 = 4,482,972.72 : x
  2. Step 2: Convert to fraction form
    5,640,660.72/7,776,593.64 = 4,482,972.72/x
  3. Step 3: Cross multiply
    5,640,660.72x = 7,776,593.64 × 4,482,972.72
  4. Step 4: Simplify right side
    5,640,660.72x = 34,862,257,142,645.50
  5. Step 5: Solve for x
    x = 34,862,257,142,645.50/5,640,660.72
  6. Step 6: Final answer
    x = 6,180,527.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.