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Finding the Fourth Proportional to 31.84, 48 and 29.52

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Solution

The fourth proportional to 31.84, 48 and 29.52 is: 44.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.84 : 48 = 29.52 : x
  2. Step 2: Convert to fraction form
    31.84/48 = 29.52/x
  3. Step 3: Cross multiply
    31.84x = 48 × 29.52
  4. Step 4: Simplify right side
    31.84x = 1,416.96
  5. Step 5: Solve for x
    x = 1,416.96/31.84
  6. Step 6: Final answer
    x = 44.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.