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Finding the Fourth Proportional to 15,989,171.58, 23,978,386.92 and 5,203,935.97

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Solution

The fourth proportional to 15,989,171.58, 23,978,386.92 and 5,203,935.97 is: 7,804,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989,171.58 : 23,978,386.92 = 5,203,935.97 : x
  2. Step 2: Convert to fraction form
    15,989,171.58/23,978,386.92 = 5,203,935.97/x
  3. Step 3: Cross multiply
    15,989,171.58x = 23,978,386.92 × 5,203,935.97
  4. Step 4: Simplify right side
    15,989,171.58x = 124,781,990,260,740.58
  5. Step 5: Solve for x
    x = 124,781,990,260,740.58/15,989,171.58
  6. Step 6: Final answer
    x = 7,804,156.06

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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.