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Finding the Fourth Proportional to 35,306.99, 48,723.42 and 21,159.83

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Solution

The fourth proportional to 35,306.99, 48,723.42 and 21,159.83 is: 29,200.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,306.99 : 48,723.42 = 21,159.83 : x
  2. Step 2: Convert to fraction form
    35,306.99/48,723.42 = 21,159.83/x
  3. Step 3: Cross multiply
    35,306.99x = 48,723.42 × 21,159.83
  4. Step 4: Simplify right side
    35,306.99x = 1,030,979,485.38
  5. Step 5: Solve for x
    x = 1,030,979,485.38/35,306.99
  6. Step 6: Final answer
    x = 29,200.44

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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.