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Finding the Fourth Proportional to 35,491,246.80, 48,978,068.20 and 19,193,722.80

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Solution

The fourth proportional to 35,491,246.80, 48,978,068.20 and 19,193,722.80 is: 26,487,417.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491,246.80 : 48,978,068.20 = 19,193,722.80 : x
  2. Step 2: Convert to fraction form
    35,491,246.80/48,978,068.20 = 19,193,722.80/x
  3. Step 3: Cross multiply
    35,491,246.80x = 48,978,068.20 × 19,193,722.80
  4. Step 4: Simplify right side
    35,491,246.80x = 940,071,464,310,295
  5. Step 5: Solve for x
    x = 940,071,464,310,295/35,491,246.80
  6. Step 6: Final answer
    x = 26,487,417.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.