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Finding the Fourth Proportional to 17,124.74, 25,685.05 and 4,643.99

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Solution

The fourth proportional to 17,124.74, 25,685.05 and 4,643.99 is: 6,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,124.74 : 25,685.05 = 4,643.99 : x
  2. Step 2: Convert to fraction form
    17,124.74/25,685.05 = 4,643.99/x
  3. Step 3: Cross multiply
    17,124.74x = 25,685.05 × 4,643.99
  4. Step 4: Simplify right side
    17,124.74x = 119,281,115.35
  5. Step 5: Solve for x
    x = 119,281,115.35/17,124.74
  6. Step 6: Final answer
    x = 6,965.43

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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.