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Finding the Fourth Proportional to 10,589.80, 14,605.12 and 7,943.08

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Solution

The fourth proportional to 10,589.80, 14,605.12 and 7,943.08 is: 10,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,589.80 : 14,605.12 = 7,943.08 : x
  2. Step 2: Convert to fraction form
    10,589.80/14,605.12 = 7,943.08/x
  3. Step 3: Cross multiply
    10,589.80x = 14,605.12 × 7,943.08
  4. Step 4: Simplify right side
    10,589.80x = 116,009,636.57
  5. Step 5: Solve for x
    x = 116,009,636.57/10,589.80
  6. Step 6: Final answer
    x = 10,954.85

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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.