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Finding the Fourth Proportional to 28,027,265.40, 42,040,898.10 and 28,027,265.40

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Solution

The fourth proportional to 28,027,265.40, 42,040,898.10 and 28,027,265.40 is: 42,040,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027,265.40 : 42,040,898.10 = 28,027,265.40 : x
  2. Step 2: Convert to fraction form
    28,027,265.40/42,040,898.10 = 28,027,265.40/x
  3. Step 3: Cross multiply
    28,027,265.40x = 42,040,898.10 × 28,027,265.40
  4. Step 4: Simplify right side
    28,027,265.40x = 1,178,291,408,703,055.75
  5. Step 5: Solve for x
    x = 1,178,291,408,703,055.75/28,027,265.40
  6. Step 6: Final answer
    x = 42,040,898.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.