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Finding the Fourth Proportional to 60,573.96, 90,861.36 and 21,130.92

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Solution

The fourth proportional to 60,573.96, 90,861.36 and 21,130.92 is: 31,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,573.96 : 90,861.36 = 21,130.92 : x
  2. Step 2: Convert to fraction form
    60,573.96/90,861.36 = 21,130.92/x
  3. Step 3: Cross multiply
    60,573.96x = 90,861.36 × 21,130.92
  4. Step 4: Simplify right side
    60,573.96x = 1,919,984,129.25
  5. Step 5: Solve for x
    x = 1,919,984,129.25/60,573.96
  6. Step 6: Final answer
    x = 31,696.53

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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.