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Finding the Fourth Proportional to 46.88, 70 and 41.76

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Solution

The fourth proportional to 46.88, 70 and 41.76 is: 62.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.88 : 70 = 41.76 : x
  2. Step 2: Convert to fraction form
    46.88/70 = 41.76/x
  3. Step 3: Cross multiply
    46.88x = 70 × 41.76
  4. Step 4: Simplify right side
    46.88x = 2,923.20
  5. Step 5: Solve for x
    x = 2,923.20/46.88
  6. Step 6: Final answer
    x = 62.35

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1.5x scale

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.