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Finding the Fourth Proportional to 9,173.97, 12,660.08 and 4,982.22

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Solution

The fourth proportional to 9,173.97, 12,660.08 and 4,982.22 is: 6,875.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,173.97 : 12,660.08 = 4,982.22 : x
  2. Step 2: Convert to fraction form
    9,173.97/12,660.08 = 4,982.22/x
  3. Step 3: Cross multiply
    9,173.97x = 12,660.08 × 4,982.22
  4. Step 4: Simplify right side
    9,173.97x = 63,075,278.87
  5. Step 5: Solve for x
    x = 63,075,278.87/9,173.97
  6. Step 6: Final answer
    x = 6,875.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.