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Finding the Fourth Proportional to 9,982,530.82, 13,775,892.55 and 5,398,852.20

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Solution

The fourth proportional to 9,982,530.82, 13,775,892.55 and 5,398,852.20 is: 7,450,416.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982,530.82 : 13,775,892.55 = 5,398,852.20 : x
  2. Step 2: Convert to fraction form
    9,982,530.82/13,775,892.55 = 5,398,852.20/x
  3. Step 3: Cross multiply
    9,982,530.82x = 13,775,892.55 × 5,398,852.20
  4. Step 4: Simplify right side
    9,982,530.82x = 74,374,007,735,374.38
  5. Step 5: Solve for x
    x = 74,374,007,735,374.38/9,982,530.82
  6. Step 6: Final answer
    x = 7,450,416.04

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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.