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Finding the Fourth Proportional to 9,841.50, 14,686.67 and 8,790.54

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Solution

The fourth proportional to 9,841.50, 14,686.67 and 8,790.54 is: 13,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,841.50 : 14,686.67 = 8,790.54 : x
  2. Step 2: Convert to fraction form
    9,841.50/14,686.67 = 8,790.54/x
  3. Step 3: Cross multiply
    9,841.50x = 14,686.67 × 8,790.54
  4. Step 4: Simplify right side
    9,841.50x = 129,103,716.15
  5. Step 5: Solve for x
    x = 129,103,716.15/9,841.50
  6. Step 6: Final answer
    x = 13,118.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.