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Finding the Fourth Proportional to 6,935,368.88, 9,571,180.92 and 3,879,400.88

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Solution

The fourth proportional to 6,935,368.88, 9,571,180.92 and 3,879,400.88 is: 5,353,781.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,935,368.88 : 9,571,180.92 = 3,879,400.88 : x
  2. Step 2: Convert to fraction form
    6,935,368.88/9,571,180.92 = 3,879,400.88/x
  3. Step 3: Cross multiply
    6,935,368.88x = 9,571,180.92 × 3,879,400.88
  4. Step 4: Simplify right side
    6,935,368.88x = 37,130,447,683,687.21
  5. Step 5: Solve for x
    x = 37,130,447,683,687.21/6,935,368.88
  6. Step 6: Final answer
    x = 5,353,781.22

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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.