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Finding the Fourth Proportional to 48,819, 67,366.42 and 29,696.20

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Solution

The fourth proportional to 48,819, 67,366.42 and 29,696.20 is: 40,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,819 : 67,366.42 = 29,696.20 : x
  2. Step 2: Convert to fraction form
    48,819/67,366.42 = 29,696.20/x
  3. Step 3: Cross multiply
    48,819x = 67,366.42 × 29,696.20
  4. Step 4: Simplify right side
    48,819x = 2,000,526,681.60
  5. Step 5: Solve for x
    x = 2,000,526,681.60/48,819
  6. Step 6: Final answer
    x = 40,978.44

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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.