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Finding the Fourth Proportional to 51,989.88, 78,024.93 and 38,692.92

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Solution

The fourth proportional to 51,989.88, 78,024.93 and 38,692.92 is: 58,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989.88 : 78,024.93 = 38,692.92 : x
  2. Step 2: Convert to fraction form
    51,989.88/78,024.93 = 38,692.92/x
  3. Step 3: Cross multiply
    51,989.88x = 78,024.93 × 38,692.92
  4. Step 4: Simplify right side
    51,989.88x = 3,019,012,374.50
  5. Step 5: Solve for x
    x = 3,019,012,374.50/51,989.88
  6. Step 6: Final answer
    x = 58,069.23

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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.