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Finding the Fourth Proportional to 8,840.53, 12,187.37 and 7,032.15

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Solution

The fourth proportional to 8,840.53, 12,187.37 and 7,032.15 is: 9,694.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.53 : 12,187.37 = 7,032.15 : x
  2. Step 2: Convert to fraction form
    8,840.53/12,187.37 = 7,032.15/x
  3. Step 3: Cross multiply
    8,840.53x = 12,187.37 × 7,032.15
  4. Step 4: Simplify right side
    8,840.53x = 85,703,413.95
  5. Step 5: Solve for x
    x = 85,703,413.95/8,840.53
  6. Step 6: Final answer
    x = 9,694.38

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Half scale
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Double scale
Find fourth proportional to 8,841.53, 12,188.75 and 7,033.15
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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.