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Finding the Fourth Proportional to 18,009,863.73, 24,895,498.88 and 16,068,978.47

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Solution

The fourth proportional to 18,009,863.73, 24,895,498.88 and 16,068,978.47 is: 22,212,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009,863.73 : 24,895,498.88 = 16,068,978.47 : x
  2. Step 2: Convert to fraction form
    18,009,863.73/24,895,498.88 = 16,068,978.47/x
  3. Step 3: Cross multiply
    18,009,863.73x = 24,895,498.88 × 16,068,978.47
  4. Step 4: Simplify right side
    18,009,863.73x = 400,045,235,502,629.12
  5. Step 5: Solve for x
    x = 400,045,235,502,629.12/18,009,863.73
  6. Step 6: Final answer
    x = 22,212,563.15

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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.