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Finding the Fourth Proportional to 55,073.76, 82,588.77 and 19,994.28

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Solution

The fourth proportional to 55,073.76, 82,588.77 and 19,994.28 is: 29,983.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,073.76 : 82,588.77 = 19,994.28 : x
  2. Step 2: Convert to fraction form
    55,073.76/82,588.77 = 19,994.28/x
  3. Step 3: Cross multiply
    55,073.76x = 82,588.77 × 19,994.28
  4. Step 4: Simplify right side
    55,073.76x = 1,651,302,992.24
  5. Step 5: Solve for x
    x = 1,651,302,992.24/55,073.76
  6. Step 6: Final answer
    x = 29,983.48

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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.