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Finding the Fourth Proportional to 8,966.72, 13,413.90 and 8,033.06

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Solution

The fourth proportional to 8,966.72, 13,413.90 and 8,033.06 is: 12,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.72 : 13,413.90 = 8,033.06 : x
  2. Step 2: Convert to fraction form
    8,966.72/13,413.90 = 8,033.06/x
  3. Step 3: Cross multiply
    8,966.72x = 13,413.90 × 8,033.06
  4. Step 4: Simplify right side
    8,966.72x = 107,754,663.53
  5. Step 5: Solve for x
    x = 107,754,663.53/8,966.72
  6. Step 6: Final answer
    x = 12,017.18

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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.