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Finding the Fourth Proportional to 9,998.10, 15,006.42 and 5,071.23

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Solution

The fourth proportional to 9,998.10, 15,006.42 and 5,071.23 is: 7,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.10 : 15,006.42 = 5,071.23 : x
  2. Step 2: Convert to fraction form
    9,998.10/15,006.42 = 5,071.23/x
  3. Step 3: Cross multiply
    9,998.10x = 15,006.42 × 5,071.23
  4. Step 4: Simplify right side
    9,998.10x = 76,101,007.30
  5. Step 5: Solve for x
    x = 76,101,007.30/9,998.10
  6. Step 6: Final answer
    x = 7,611.55

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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.