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Finding the Fourth Proportional to 34,058.40, 51,111.90 and 19,251.60

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Solution

The fourth proportional to 34,058.40, 51,111.90 and 19,251.60 is: 28,891.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,058.40 : 51,111.90 = 19,251.60 : x
  2. Step 2: Convert to fraction form
    34,058.40/51,111.90 = 19,251.60/x
  3. Step 3: Cross multiply
    34,058.40x = 51,111.90 × 19,251.60
  4. Step 4: Simplify right side
    34,058.40x = 983,985,854.04
  5. Step 5: Solve for x
    x = 983,985,854.04/34,058.40
  6. Step 6: Final answer
    x = 28,891.14

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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.