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Finding the Fourth Proportional to 9,959.13, 14,844.96 and 9,640.80

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Solution

The fourth proportional to 9,959.13, 14,844.96 and 9,640.80 is: 14,370.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.13 : 14,844.96 = 9,640.80 : x
  2. Step 2: Convert to fraction form
    9,959.13/14,844.96 = 9,640.80/x
  3. Step 3: Cross multiply
    9,959.13x = 14,844.96 × 9,640.80
  4. Step 4: Simplify right side
    9,959.13x = 143,117,290.37
  5. Step 5: Solve for x
    x = 143,117,290.37/9,959.13
  6. Step 6: Final answer
    x = 14,370.46

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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.