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Finding the Fourth Proportional to 10.02, 14.93 and 9.84

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Solution

The fourth proportional to 10.02, 14.93 and 9.84 is: 14.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.02 : 14.93 = 9.84 : x
  2. Step 2: Convert to fraction form
    10.02/14.93 = 9.84/x
  3. Step 3: Cross multiply
    10.02x = 14.93 × 9.84
  4. Step 4: Simplify right side
    10.02x = 146.91
  5. Step 5: Solve for x
    x = 146.91/10.02
  6. Step 6: Final answer
    x = 14.66

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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.