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Finding the Fourth Proportional to 9,993,801.88, 13,791,443.70 and 5,410,119.88

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Solution

The fourth proportional to 9,993,801.88, 13,791,443.70 and 5,410,119.88 is: 7,465,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993,801.88 : 13,791,443.70 = 5,410,119.88 : x
  2. Step 2: Convert to fraction form
    9,993,801.88/13,791,443.70 = 5,410,119.88/x
  3. Step 3: Cross multiply
    9,993,801.88x = 13,791,443.70 × 5,410,119.88
  4. Step 4: Simplify right side
    9,993,801.88x = 74,613,363,735,270.75
  5. Step 5: Solve for x
    x = 74,613,363,735,270.75/9,993,801.88
  6. Step 6: Final answer
    x = 7,465,963.87

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1.5x scale

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.