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Finding the Fourth Proportional to 9,365.88, 12,924.84 and 5,174.16

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Solution

The fourth proportional to 9,365.88, 12,924.84 and 5,174.16 is: 7,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.88 : 12,924.84 = 5,174.16 : x
  2. Step 2: Convert to fraction form
    9,365.88/12,924.84 = 5,174.16/x
  3. Step 3: Cross multiply
    9,365.88x = 12,924.84 × 5,174.16
  4. Step 4: Simplify right side
    9,365.88x = 66,875,190.13
  5. Step 5: Solve for x
    x = 66,875,190.13/9,365.88
  6. Step 6: Final answer
    x = 7,140.30

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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.