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Finding the Fourth Proportional to 7,699.56, 10,619.94 and 7,584.36

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Solution

The fourth proportional to 7,699.56, 10,619.94 and 7,584.36 is: 10,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.56 : 10,619.94 = 7,584.36 : x
  2. Step 2: Convert to fraction form
    7,699.56/10,619.94 = 7,584.36/x
  3. Step 3: Cross multiply
    7,699.56x = 10,619.94 × 7,584.36
  4. Step 4: Simplify right side
    7,699.56x = 80,545,448.14
  5. Step 5: Solve for x
    x = 80,545,448.14/7,699.56
  6. Step 6: Final answer
    x = 10,461.05

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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.