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Finding the Fourth Proportional to 8,995.71, 12,413.80 and 5,017.49

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Solution

The fourth proportional to 8,995.71, 12,413.80 and 5,017.49 is: 6,923.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.71 : 12,413.80 = 5,017.49 : x
  2. Step 2: Convert to fraction form
    8,995.71/12,413.80 = 5,017.49/x
  3. Step 3: Cross multiply
    8,995.71x = 12,413.80 × 5,017.49
  4. Step 4: Simplify right side
    8,995.71x = 62,286,154.67
  5. Step 5: Solve for x
    x = 62,286,154.67/8,995.71
  6. Step 6: Final answer
    x = 6,923.99

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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.