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Finding the Fourth Proportional to 17,312.95, 25,976.61 and 8,302.51

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Solution

The fourth proportional to 17,312.95, 25,976.61 and 8,302.51 is: 12,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.95 : 25,976.61 = 8,302.51 : x
  2. Step 2: Convert to fraction form
    17,312.95/25,976.61 = 8,302.51/x
  3. Step 3: Cross multiply
    17,312.95x = 25,976.61 × 8,302.51
  4. Step 4: Simplify right side
    17,312.95x = 215,670,999.35
  5. Step 5: Solve for x
    x = 215,670,999.35/17,312.95
  6. Step 6: Final answer
    x = 12,457.21

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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.