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Finding the Fourth Proportional to 51,602.67, 71,212.50 and 28,946.70

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Solution

The fourth proportional to 51,602.67, 71,212.50 and 28,946.70 is: 39,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,602.67 : 71,212.50 = 28,946.70 : x
  2. Step 2: Convert to fraction form
    51,602.67/71,212.50 = 28,946.70/x
  3. Step 3: Cross multiply
    51,602.67x = 71,212.50 × 28,946.70
  4. Step 4: Simplify right side
    51,602.67x = 2,061,366,873.75
  5. Step 5: Solve for x
    x = 2,061,366,873.75/51,602.67
  6. Step 6: Final answer
    x = 39,946.90

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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.