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Finding the Fourth Proportional to 21,883.70, 32,807.55 and 9,413.30

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Solution

The fourth proportional to 21,883.70, 32,807.55 and 9,413.30 is: 14,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,883.70 : 32,807.55 = 9,413.30 : x
  2. Step 2: Convert to fraction form
    21,883.70/32,807.55 = 9,413.30/x
  3. Step 3: Cross multiply
    21,883.70x = 32,807.55 × 9,413.30
  4. Step 4: Simplify right side
    21,883.70x = 308,827,310.42
  5. Step 5: Solve for x
    x = 308,827,310.42/21,883.70
  6. Step 6: Final answer
    x = 14,112.21

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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.