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Finding the Fourth Proportional to 9,858.55, 13,610.94 and 6,275.53

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Solution

The fourth proportional to 9,858.55, 13,610.94 and 6,275.53 is: 8,664.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,858.55 : 13,610.94 = 6,275.53 : x
  2. Step 2: Convert to fraction form
    9,858.55/13,610.94 = 6,275.53/x
  3. Step 3: Cross multiply
    9,858.55x = 13,610.94 × 6,275.53
  4. Step 4: Simplify right side
    9,858.55x = 85,415,862.30
  5. Step 5: Solve for x
    x = 85,415,862.30/9,858.55
  6. Step 6: Final answer
    x = 8,664.14

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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.