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Finding the Fourth Proportional to 19,773.15, 29,651.08 and 5,918.91

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Solution

The fourth proportional to 19,773.15, 29,651.08 and 5,918.91 is: 8,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.15 : 29,651.08 = 5,918.91 : x
  2. Step 2: Convert to fraction form
    19,773.15/29,651.08 = 5,918.91/x
  3. Step 3: Cross multiply
    19,773.15x = 29,651.08 × 5,918.91
  4. Step 4: Simplify right side
    19,773.15x = 175,502,073.92
  5. Step 5: Solve for x
    x = 175,502,073.92/19,773.15
  6. Step 6: Final answer
    x = 8,875.78

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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.