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Finding the Fourth Proportional to 13,593,602.40, 20,414,023.20 and 7,216,310.40

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Solution

The fourth proportional to 13,593,602.40, 20,414,023.20 and 7,216,310.40 is: 10,837,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593,602.40 : 20,414,023.20 = 7,216,310.40 : x
  2. Step 2: Convert to fraction form
    13,593,602.40/20,414,023.20 = 7,216,310.40/x
  3. Step 3: Cross multiply
    13,593,602.40x = 20,414,023.20 × 7,216,310.40
  4. Step 4: Simplify right side
    13,593,602.40x = 147,313,927,924,001.28
  5. Step 5: Solve for x
    x = 147,313,927,924,001.28/13,593,602.40
  6. Step 6: Final answer
    x = 10,837,004.32

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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.