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Finding the Fourth Proportional to 15,979,244.40, 23,978,708.10 and 6,885,698.40

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Solution

The fourth proportional to 15,979,244.40, 23,978,708.10 and 6,885,698.40 is: 10,332,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979,244.40 : 23,978,708.10 = 6,885,698.40 : x
  2. Step 2: Convert to fraction form
    15,979,244.40/23,978,708.10 = 6,885,698.40/x
  3. Step 3: Cross multiply
    15,979,244.40x = 23,978,708.10 × 6,885,698.40
  4. Step 4: Simplify right side
    15,979,244.40x = 165,110,151,998,237.06
  5. Step 5: Solve for x
    x = 165,110,151,998,237.06/15,979,244.40
  6. Step 6: Final answer
    x = 10,332,788.45

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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.