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Finding the Fourth Proportional to 51,955.76, 71,700.60 and 29,601.20

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Solution

The fourth proportional to 51,955.76, 71,700.60 and 29,601.20 is: 40,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,955.76 : 71,700.60 = 29,601.20 : x
  2. Step 2: Convert to fraction form
    51,955.76/71,700.60 = 29,601.20/x
  3. Step 3: Cross multiply
    51,955.76x = 71,700.60 × 29,601.20
  4. Step 4: Simplify right side
    51,955.76x = 2,122,423,800.72
  5. Step 5: Solve for x
    x = 2,122,423,800.72/51,955.76
  6. Step 6: Final answer
    x = 40,850.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.