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Finding the Fourth Proportional to 17,875.13, 26,803.98 and 5,392.80

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Solution

The fourth proportional to 17,875.13, 26,803.98 and 5,392.80 is: 8,086.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,875.13 : 26,803.98 = 5,392.80 : x
  2. Step 2: Convert to fraction form
    17,875.13/26,803.98 = 5,392.80/x
  3. Step 3: Cross multiply
    17,875.13x = 26,803.98 × 5,392.80
  4. Step 4: Simplify right side
    17,875.13x = 144,548,503.34
  5. Step 5: Solve for x
    x = 144,548,503.34/17,875.13
  6. Step 6: Final answer
    x = 8,086.57

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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.