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Finding the Fourth Proportional to 60,564.75, 90,861.71 and 19,011.75

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Solution

The fourth proportional to 60,564.75, 90,861.71 and 19,011.75 is: 28,522.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,564.75 : 90,861.71 = 19,011.75 : x
  2. Step 2: Convert to fraction form
    60,564.75/90,861.71 = 19,011.75/x
  3. Step 3: Cross multiply
    60,564.75x = 90,861.71 × 19,011.75
  4. Step 4: Simplify right side
    60,564.75x = 1,727,440,020.03
  5. Step 5: Solve for x
    x = 1,727,440,020.03/60,564.75
  6. Step 6: Final answer
    x = 28,522.20

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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.