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Finding the Fourth Proportional to 18,501.52, 27,750.74 and 9,616.90

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Solution

The fourth proportional to 18,501.52, 27,750.74 and 9,616.90 is: 14,424.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,501.52 : 27,750.74 = 9,616.90 : x
  2. Step 2: Convert to fraction form
    18,501.52/27,750.74 = 9,616.90/x
  3. Step 3: Cross multiply
    18,501.52x = 27,750.74 × 9,616.90
  4. Step 4: Simplify right side
    18,501.52x = 266,876,091.51
  5. Step 5: Solve for x
    x = 266,876,091.51/18,501.52
  6. Step 6: Final answer
    x = 14,424.55

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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.