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Finding the Fourth Proportional to 6,918.55, 9,544.86 and 4,261.35

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Solution

The fourth proportional to 6,918.55, 9,544.86 and 4,261.35 is: 5,878.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.55 : 9,544.86 = 4,261.35 : x
  2. Step 2: Convert to fraction form
    6,918.55/9,544.86 = 4,261.35/x
  3. Step 3: Cross multiply
    6,918.55x = 9,544.86 × 4,261.35
  4. Step 4: Simplify right side
    6,918.55x = 40,673,989.16
  5. Step 5: Solve for x
    x = 40,673,989.16/6,918.55
  6. Step 6: Final answer
    x = 5,878.98

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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.