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Finding the Fourth Proportional to 8,605,442.02, 12,903,435.87 and 5,910,445.30

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Solution

The fourth proportional to 8,605,442.02, 12,903,435.87 and 5,910,445.30 is: 8,862,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605,442.02 : 12,903,435.87 = 5,910,445.30 : x
  2. Step 2: Convert to fraction form
    8,605,442.02/12,903,435.87 = 5,910,445.30/x
  3. Step 3: Cross multiply
    8,605,442.02x = 12,903,435.87 × 5,910,445.30
  4. Step 4: Simplify right side
    8,605,442.02x = 76,265,051,891,692.91
  5. Step 5: Solve for x
    x = 76,265,051,891,692.91/8,605,442.02
  6. Step 6: Final answer
    x = 8,862,421.21

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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.