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Finding the Fourth Proportional to 6,492,729.88, 8,962,837.14 and 3,880,155.88

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Solution

The fourth proportional to 6,492,729.88, 8,962,837.14 and 3,880,155.88 is: 5,356,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,492,729.88 : 8,962,837.14 = 3,880,155.88 : x
  2. Step 2: Convert to fraction form
    6,492,729.88/8,962,837.14 = 3,880,155.88/x
  3. Step 3: Cross multiply
    6,492,729.88x = 8,962,837.14 × 3,880,155.88
  4. Step 4: Simplify right side
    6,492,729.88x = 34,777,205,230,253.38
  5. Step 5: Solve for x
    x = 34,777,205,230,253.38/6,492,729.88
  6. Step 6: Final answer
    x = 5,356,330.21

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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.