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Finding the Fourth Proportional to 50,012.78, 75,048.98 and 17,989.16

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Solution

The fourth proportional to 50,012.78, 75,048.98 and 17,989.16 is: 26,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,012.78 : 75,048.98 = 17,989.16 : x
  2. Step 2: Convert to fraction form
    50,012.78/75,048.98 = 17,989.16/x
  3. Step 3: Cross multiply
    50,012.78x = 75,048.98 × 17,989.16
  4. Step 4: Simplify right side
    50,012.78x = 1,350,067,643.87
  5. Step 5: Solve for x
    x = 1,350,067,643.87/50,012.78
  6. Step 6: Final answer
    x = 26,994.46

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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.