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Finding the Fourth Proportional to 38,961,672.80, 58,442,509.20 and 16,258,863.20

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Solution

The fourth proportional to 38,961,672.80, 58,442,509.20 and 16,258,863.20 is: 24,388,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,961,672.80 : 58,442,509.20 = 16,258,863.20 : x
  2. Step 2: Convert to fraction form
    38,961,672.80/58,442,509.20 = 16,258,863.20/x
  3. Step 3: Cross multiply
    38,961,672.80x = 58,442,509.20 × 16,258,863.20
  4. Step 4: Simplify right side
    38,961,672.80x = 950,208,762,147,541.50
  5. Step 5: Solve for x
    x = 950,208,762,147,541.50/38,961,672.80
  6. Step 6: Final answer
    x = 24,388,294.80

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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.