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Finding the Fourth Proportional to 60,616.82, 90,923.08 and 18,495.20

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Solution

The fourth proportional to 60,616.82, 90,923.08 and 18,495.20 is: 27,742.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,616.82 : 90,923.08 = 18,495.20 : x
  2. Step 2: Convert to fraction form
    60,616.82/90,923.08 = 18,495.20/x
  3. Step 3: Cross multiply
    60,616.82x = 90,923.08 × 18,495.20
  4. Step 4: Simplify right side
    60,616.82x = 1,681,640,549.22
  5. Step 5: Solve for x
    x = 1,681,640,549.22/60,616.82
  6. Step 6: Final answer
    x = 27,742.14

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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.