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Finding the Fourth Proportional to 18,290.76, 27,437.70 and 7,196.76

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Solution

The fourth proportional to 18,290.76, 27,437.70 and 7,196.76 is: 10,795.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.76 : 27,437.70 = 7,196.76 : x
  2. Step 2: Convert to fraction form
    18,290.76/27,437.70 = 7,196.76/x
  3. Step 3: Cross multiply
    18,290.76x = 27,437.70 × 7,196.76
  4. Step 4: Simplify right side
    18,290.76x = 197,462,541.85
  5. Step 5: Solve for x
    x = 197,462,541.85/18,290.76
  6. Step 6: Final answer
    x = 10,795.75

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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.