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Finding the Fourth Proportional to 53,585.62, 80,372.72 and 21,998.99

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Solution

The fourth proportional to 53,585.62, 80,372.72 and 21,998.99 is: 32,996.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,585.62 : 80,372.72 = 21,998.99 : x
  2. Step 2: Convert to fraction form
    53,585.62/80,372.72 = 21,998.99/x
  3. Step 3: Cross multiply
    53,585.62x = 80,372.72 × 21,998.99
  4. Step 4: Simplify right side
    53,585.62x = 1,768,118,919.48
  5. Step 5: Solve for x
    x = 1,768,118,919.48/53,585.62
  6. Step 6: Final answer
    x = 32,996.15

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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.