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Finding the Fourth Proportional to 5,910,576.60, 8,865,864.90 and 2,124,442.20

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Solution

The fourth proportional to 5,910,576.60, 8,865,864.90 and 2,124,442.20 is: 3,186,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910,576.60 : 8,865,864.90 = 2,124,442.20 : x
  2. Step 2: Convert to fraction form
    5,910,576.60/8,865,864.90 = 2,124,442.20/x
  3. Step 3: Cross multiply
    5,910,576.60x = 8,865,864.90 × 2,124,442.20
  4. Step 4: Simplify right side
    5,910,576.60x = 18,835,017,533,058.78
  5. Step 5: Solve for x
    x = 18,835,017,533,058.78/5,910,576.60
  6. Step 6: Final answer
    x = 3,186,663.30

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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.