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Finding the Fourth Proportional to 9,860.16, 13,606.83 and 5,611.13

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Solution

The fourth proportional to 9,860.16, 13,606.83 and 5,611.13 is: 7,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.16 : 13,606.83 = 5,611.13 : x
  2. Step 2: Convert to fraction form
    9,860.16/13,606.83 = 5,611.13/x
  3. Step 3: Cross multiply
    9,860.16x = 13,606.83 × 5,611.13
  4. Step 4: Simplify right side
    9,860.16x = 76,349,692.02
  5. Step 5: Solve for x
    x = 76,349,692.02/9,860.16
  6. Step 6: Final answer
    x = 7,743.25

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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.