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Finding the Fourth Proportional to 22.04, 32.64 and 22

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Solution

The fourth proportional to 22.04, 32.64 and 22 is: 32.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.04 : 32.64 = 22 : x
  2. Step 2: Convert to fraction form
    22.04/32.64 = 22/x
  3. Step 3: Cross multiply
    22.04x = 32.64 × 22
  4. Step 4: Simplify right side
    22.04x = 718.08
  5. Step 5: Solve for x
    x = 718.08/22.04
  6. Step 6: Final answer
    x = 32.58

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.