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Finding the Fourth Proportional to 6,628,549.95, 9,942,830.51 and 3,169,475.78

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Solution

The fourth proportional to 6,628,549.95, 9,942,830.51 and 3,169,475.78 is: 4,754,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628,549.95 : 9,942,830.51 = 3,169,475.78 : x
  2. Step 2: Convert to fraction form
    6,628,549.95/9,942,830.51 = 3,169,475.78/x
  3. Step 3: Cross multiply
    6,628,549.95x = 9,942,830.51 × 3,169,475.78
  4. Step 4: Simplify right side
    6,628,549.95x = 31,513,560,486,090.05
  5. Step 5: Solve for x
    x = 31,513,560,486,090.05/6,628,549.95
  6. Step 6: Final answer
    x = 4,754,216.34

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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.