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Finding the Fourth Proportional to 9,955.36, 14,934.36 and 7,619.80

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Solution

The fourth proportional to 9,955.36, 14,934.36 and 7,619.80 is: 11,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955.36 : 14,934.36 = 7,619.80 : x
  2. Step 2: Convert to fraction form
    9,955.36/14,934.36 = 7,619.80/x
  3. Step 3: Cross multiply
    9,955.36x = 14,934.36 × 7,619.80
  4. Step 4: Simplify right side
    9,955.36x = 113,796,723.56
  5. Step 5: Solve for x
    x = 113,796,723.56/9,955.36
  6. Step 6: Final answer
    x = 11,430.70

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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.