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Finding the Fourth Proportional to 14,654,957.20, 21,978,499.20 and 6,133,530.40

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Solution

The fourth proportional to 14,654,957.20, 21,978,499.20 and 6,133,530.40 is: 9,198,648.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,654,957.20 : 21,978,499.20 = 6,133,530.40 : x
  2. Step 2: Convert to fraction form
    14,654,957.20/21,978,499.20 = 6,133,530.40/x
  3. Step 3: Cross multiply
    14,654,957.20x = 21,978,499.20 × 6,133,530.40
  4. Step 4: Simplify right side
    14,654,957.20x = 134,805,792,989,575.69
  5. Step 5: Solve for x
    x = 134,805,792,989,575.69/14,654,957.20
  6. Step 6: Final answer
    x = 9,198,648.02

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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.