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Finding the Fourth Proportional to 9,069.16, 13,603.74 and 5,990.44

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Solution

The fourth proportional to 9,069.16, 13,603.74 and 5,990.44 is: 8,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,069.16 : 13,603.74 = 5,990.44 : x
  2. Step 2: Convert to fraction form
    9,069.16/13,603.74 = 5,990.44/x
  3. Step 3: Cross multiply
    9,069.16x = 13,603.74 × 5,990.44
  4. Step 4: Simplify right side
    9,069.16x = 81,492,388.25
  5. Step 5: Solve for x
    x = 81,492,388.25/9,069.16
  6. Step 6: Final answer
    x = 8,985.66

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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.