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Finding the Fourth Proportional to 35.16, 52.38 and 35.02

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Solution

The fourth proportional to 35.16, 52.38 and 35.02 is: 52.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.16 : 52.38 = 35.02 : x
  2. Step 2: Convert to fraction form
    35.16/52.38 = 35.02/x
  3. Step 3: Cross multiply
    35.16x = 52.38 × 35.02
  4. Step 4: Simplify right side
    35.16x = 1,834.35
  5. Step 5: Solve for x
    x = 1,834.35/35.16
  6. Step 6: Final answer
    x = 52.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.