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Finding the Fourth Proportional to 3,868,875.20, 5,422,024 and 3,868,875.20

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Solution

The fourth proportional to 3,868,875.20, 5,422,024 and 3,868,875.20 is: 5,422,024

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868,875.20 : 5,422,024 = 3,868,875.20 : x
  2. Step 2: Convert to fraction form
    3,868,875.20/5,422,024 = 3,868,875.20/x
  3. Step 3: Cross multiply
    3,868,875.20x = 5,422,024 × 3,868,875.20
  4. Step 4: Simplify right side
    3,868,875.20x = 20,977,134,187,404.80
  5. Step 5: Solve for x
    x = 20,977,134,187,404.80/3,868,875.20
  6. Step 6: Final answer
    x = 5,422,024

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.