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Finding the Fourth Proportional to 35.32, 53 and 11.28

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Solution

The fourth proportional to 35.32, 53 and 11.28 is: 16.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.32 : 53 = 11.28 : x
  2. Step 2: Convert to fraction form
    35.32/53 = 11.28/x
  3. Step 3: Cross multiply
    35.32x = 53 × 11.28
  4. Step 4: Simplify right side
    35.32x = 597.84
  5. Step 5: Solve for x
    x = 597.84/35.32
  6. Step 6: Final answer
    x = 16.93

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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.