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Finding the Fourth Proportional to 18,030.95, 27,046.42 and 7,500.77

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Solution

The fourth proportional to 18,030.95, 27,046.42 and 7,500.77 is: 11,251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.95 : 27,046.42 = 7,500.77 : x
  2. Step 2: Convert to fraction form
    18,030.95/27,046.42 = 7,500.77/x
  3. Step 3: Cross multiply
    18,030.95x = 27,046.42 × 7,500.77
  4. Step 4: Simplify right side
    18,030.95x = 202,868,975.74
  5. Step 5: Solve for x
    x = 202,868,975.74/18,030.95
  6. Step 6: Final answer
    x = 11,251.15

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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.