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Finding the Fourth Proportional to 21,694.53, 32,546.67 and 7,655.55

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Solution

The fourth proportional to 21,694.53, 32,546.67 and 7,655.55 is: 11,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694.53 : 32,546.67 = 7,655.55 : x
  2. Step 2: Convert to fraction form
    21,694.53/32,546.67 = 7,655.55/x
  3. Step 3: Cross multiply
    21,694.53x = 32,546.67 × 7,655.55
  4. Step 4: Simplify right side
    21,694.53x = 249,162,810.28
  5. Step 5: Solve for x
    x = 249,162,810.28/21,694.53
  6. Step 6: Final answer
    x = 11,485.05

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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.