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Finding the Fourth Proportional to 60,066.50, 90,099.76 and 18,513.50

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Solution

The fourth proportional to 60,066.50, 90,099.76 and 18,513.50 is: 27,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,066.50 : 90,099.76 = 18,513.50 : x
  2. Step 2: Convert to fraction form
    60,066.50/90,099.76 = 18,513.50/x
  3. Step 3: Cross multiply
    60,066.50x = 90,099.76 × 18,513.50
  4. Step 4: Simplify right side
    60,066.50x = 1,668,061,906.76
  5. Step 5: Solve for x
    x = 1,668,061,906.76/60,066.50
  6. Step 6: Final answer
    x = 27,770.25

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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.