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Finding the Fourth Proportional to 13,842,483.20, 20,763,724.80 and 6,652,283.30

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Solution

The fourth proportional to 13,842,483.20, 20,763,724.80 and 6,652,283.30 is: 9,978,424.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842,483.20 : 20,763,724.80 = 6,652,283.30 : x
  2. Step 2: Convert to fraction form
    13,842,483.20/20,763,724.80 = 6,652,283.30/x
  3. Step 3: Cross multiply
    13,842,483.20x = 20,763,724.80 × 6,652,283.30
  4. Step 4: Simplify right side
    13,842,483.20x = 138,126,179,732,835.84
  5. Step 5: Solve for x
    x = 138,126,179,732,835.84/13,842,483.20
  6. Step 6: Final answer
    x = 9,978,424.95

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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.