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Finding the Fourth Proportional to 8,116.03, 11,200.12 and 4,390.03

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Solution

The fourth proportional to 8,116.03, 11,200.12 and 4,390.03 is: 6,058.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.03 : 11,200.12 = 4,390.03 : x
  2. Step 2: Convert to fraction form
    8,116.03/11,200.12 = 4,390.03/x
  3. Step 3: Cross multiply
    8,116.03x = 11,200.12 × 4,390.03
  4. Step 4: Simplify right side
    8,116.03x = 49,168,890.52
  5. Step 5: Solve for x
    x = 49,168,890.52/8,116.03
  6. Step 6: Final answer
    x = 6,058.24

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Half scale
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Double scale
Find fourth proportional to 8,117.03, 11,201.50 and 4,391.03
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.