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Finding the Fourth Proportional to 30,601.99, 45,873.62 and 10,869.78

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Solution

The fourth proportional to 30,601.99, 45,873.62 and 10,869.78 is: 16,294.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,601.99 : 45,873.62 = 10,869.78 : x
  2. Step 2: Convert to fraction form
    30,601.99/45,873.62 = 10,869.78/x
  3. Step 3: Cross multiply
    30,601.99x = 45,873.62 × 10,869.78
  4. Step 4: Simplify right side
    30,601.99x = 498,636,157.20
  5. Step 5: Solve for x
    x = 498,636,157.20/30,601.99
  6. Step 6: Final answer
    x = 16,294.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.