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Finding the Fourth Proportional to 53,375.97, 80,075.39 and 15,938.99

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Solution

The fourth proportional to 53,375.97, 80,075.39 and 15,938.99 is: 23,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,375.97 : 80,075.39 = 15,938.99 : x
  2. Step 2: Convert to fraction form
    53,375.97/80,075.39 = 15,938.99/x
  3. Step 3: Cross multiply
    53,375.97x = 80,075.39 × 15,938.99
  4. Step 4: Simplify right side
    53,375.97x = 1,276,320,840.46
  5. Step 5: Solve for x
    x = 1,276,320,840.46/53,375.97
  6. Step 6: Final answer
    x = 23,911.90

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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.