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Finding the Fourth Proportional to 8,764,596.10, 13,146,894.15 and 7,420,903.30

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Solution

The fourth proportional to 8,764,596.10, 13,146,894.15 and 7,420,903.30 is: 11,131,354.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764,596.10 : 13,146,894.15 = 7,420,903.30 : x
  2. Step 2: Convert to fraction form
    8,764,596.10/13,146,894.15 = 7,420,903.30/x
  3. Step 3: Cross multiply
    8,764,596.10x = 13,146,894.15 × 7,420,903.30
  4. Step 4: Simplify right side
    8,764,596.10x = 97,561,830,182,485.70
  5. Step 5: Solve for x
    x = 97,561,830,182,485.70/8,764,596.10
  6. Step 6: Final answer
    x = 11,131,354.95

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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.