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Finding the Fourth Proportional to 67,236.99, 100,855.47 and 19,852.71

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Solution

The fourth proportional to 67,236.99, 100,855.47 and 19,852.71 is: 29,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,236.99 : 100,855.47 = 19,852.71 : x
  2. Step 2: Convert to fraction form
    67,236.99/100,855.47 = 19,852.71/x
  3. Step 3: Cross multiply
    67,236.99x = 100,855.47 × 19,852.71
  4. Step 4: Simplify right side
    67,236.99x = 2,002,254,397.82
  5. Step 5: Solve for x
    x = 2,002,254,397.82/67,236.99
  6. Step 6: Final answer
    x = 29,779.06

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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.