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Finding the Fourth Proportional to 34,886.98, 48,145.98 and 18,971.11

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Solution

The fourth proportional to 34,886.98, 48,145.98 and 18,971.11 is: 26,181.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,886.98 : 48,145.98 = 18,971.11 : x
  2. Step 2: Convert to fraction form
    34,886.98/48,145.98 = 18,971.11/x
  3. Step 3: Cross multiply
    34,886.98x = 48,145.98 × 18,971.11
  4. Step 4: Simplify right side
    34,886.98x = 913,382,682.64
  5. Step 5: Solve for x
    x = 913,382,682.64/34,886.98
  6. Step 6: Final answer
    x = 26,181.19

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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.