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Finding the Fourth Proportional to 9,745.40, 14,618.10 and 8,708.60

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Solution

The fourth proportional to 9,745.40, 14,618.10 and 8,708.60 is: 13,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,745.40 : 14,618.10 = 8,708.60 : x
  2. Step 2: Convert to fraction form
    9,745.40/14,618.10 = 8,708.60/x
  3. Step 3: Cross multiply
    9,745.40x = 14,618.10 × 8,708.60
  4. Step 4: Simplify right side
    9,745.40x = 127,303,185.66
  5. Step 5: Solve for x
    x = 127,303,185.66/9,745.40
  6. Step 6: Final answer
    x = 13,062.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.