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Finding the Fourth Proportional to 53,703.34, 80,555.82 and 18,644.11

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Solution

The fourth proportional to 53,703.34, 80,555.82 and 18,644.11 is: 27,966.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,703.34 : 80,555.82 = 18,644.11 : x
  2. Step 2: Convert to fraction form
    53,703.34/80,555.82 = 18,644.11/x
  3. Step 3: Cross multiply
    53,703.34x = 80,555.82 × 18,644.11
  4. Step 4: Simplify right side
    53,703.34x = 1,501,891,073.22
  5. Step 5: Solve for x
    x = 1,501,891,073.22/53,703.34
  6. Step 6: Final answer
    x = 27,966.44

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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.