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Finding the Fourth Proportional to 18,111.53, 27,164.99 and 7,010.63

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Solution

The fourth proportional to 18,111.53, 27,164.99 and 7,010.63 is: 10,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.53 : 27,164.99 = 7,010.63 : x
  2. Step 2: Convert to fraction form
    18,111.53/27,164.99 = 7,010.63/x
  3. Step 3: Cross multiply
    18,111.53x = 27,164.99 × 7,010.63
  4. Step 4: Simplify right side
    18,111.53x = 190,443,658.79
  5. Step 5: Solve for x
    x = 190,443,658.79/18,111.53
  6. Step 6: Final answer
    x = 10,515.05

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.