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Finding the Fourth Proportional to 8,697,739.20, 13,046,608.80 and 8,025,892.80

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Solution

The fourth proportional to 8,697,739.20, 13,046,608.80 and 8,025,892.80 is: 12,038,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697,739.20 : 13,046,608.80 = 8,025,892.80 : x
  2. Step 2: Convert to fraction form
    8,697,739.20/13,046,608.80 = 8,025,892.80/x
  3. Step 3: Cross multiply
    8,697,739.20x = 13,046,608.80 × 8,025,892.80
  4. Step 4: Simplify right side
    8,697,739.20x = 104,710,683,632,336.64
  5. Step 5: Solve for x
    x = 104,710,683,632,336.64/8,697,739.20
  6. Step 6: Final answer
    x = 12,038,839.20

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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.