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Finding the Fourth Proportional to 9,763.60, 14,635.80 and 8,726.80

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Solution

The fourth proportional to 9,763.60, 14,635.80 and 8,726.80 is: 13,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,763.60 : 14,635.80 = 8,726.80 : x
  2. Step 2: Convert to fraction form
    9,763.60/14,635.80 = 8,726.80/x
  3. Step 3: Cross multiply
    9,763.60x = 14,635.80 × 8,726.80
  4. Step 4: Simplify right side
    9,763.60x = 127,723,699.44
  5. Step 5: Solve for x
    x = 127,723,699.44/9,763.60
  6. Step 6: Final answer
    x = 13,081.62

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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.