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Finding the Fourth Proportional to 17,470.76, 26,207.04 and 4,989.80

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Solution

The fourth proportional to 17,470.76, 26,207.04 and 4,989.80 is: 7,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,470.76 : 26,207.04 = 4,989.80 : x
  2. Step 2: Convert to fraction form
    17,470.76/26,207.04 = 4,989.80/x
  3. Step 3: Cross multiply
    17,470.76x = 26,207.04 × 4,989.80
  4. Step 4: Simplify right side
    17,470.76x = 130,767,888.19
  5. Step 5: Solve for x
    x = 130,767,888.19/17,470.76
  6. Step 6: Final answer
    x = 7,484.96

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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.