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Finding the Fourth Proportional to 17,114.30, 25,621.05 and 12,751.10

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Solution

The fourth proportional to 17,114.30, 25,621.05 and 12,751.10 is: 19,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,114.30 : 25,621.05 = 12,751.10 : x
  2. Step 2: Convert to fraction form
    17,114.30/25,621.05 = 12,751.10/x
  3. Step 3: Cross multiply
    17,114.30x = 25,621.05 × 12,751.10
  4. Step 4: Simplify right side
    17,114.30x = 326,696,570.66
  5. Step 5: Solve for x
    x = 326,696,570.66/17,114.30
  6. Step 6: Final answer
    x = 19,089.10

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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.