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Finding the Fourth Proportional to 18,706.06, 28,034.86 and 7,599.76

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Solution

The fourth proportional to 18,706.06, 28,034.86 and 7,599.76 is: 11,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.06 : 28,034.86 = 7,599.76 : x
  2. Step 2: Convert to fraction form
    18,706.06/28,034.86 = 7,599.76/x
  3. Step 3: Cross multiply
    18,706.06x = 28,034.86 × 7,599.76
  4. Step 4: Simplify right side
    18,706.06x = 213,058,207.63
  5. Step 5: Solve for x
    x = 213,058,207.63/18,706.06
  6. Step 6: Final answer
    x = 11,389.80

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1.5x scale

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.