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Finding the Fourth Proportional to 29,300.58, 40,434.80 and 15,871.73

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Solution

The fourth proportional to 29,300.58, 40,434.80 and 15,871.73 is: 21,902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,300.58 : 40,434.80 = 15,871.73 : x
  2. Step 2: Convert to fraction form
    29,300.58/40,434.80 = 15,871.73/x
  3. Step 3: Cross multiply
    29,300.58x = 40,434.80 × 15,871.73
  4. Step 4: Simplify right side
    29,300.58x = 641,769,946.67
  5. Step 5: Solve for x
    x = 641,769,946.67/29,300.58
  6. Step 6: Final answer
    x = 21,902.98

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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.