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Finding the Fourth Proportional to 6,843,223.12, 9,443,888.12 and 3,745,749.01

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Solution

The fourth proportional to 6,843,223.12, 9,443,888.12 and 3,745,749.01 is: 5,169,265.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,843,223.12 : 9,443,888.12 = 3,745,749.01 : x
  2. Step 2: Convert to fraction form
    6,843,223.12/9,443,888.12 = 3,745,749.01/x
  3. Step 3: Cross multiply
    6,843,223.12x = 9,443,888.12 × 3,745,749.01
  4. Step 4: Simplify right side
    6,843,223.12x = 35,374,434,576,040.76
  5. Step 5: Solve for x
    x = 35,374,434,576,040.76/6,843,223.12
  6. Step 6: Final answer
    x = 5,169,265.12

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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.