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Finding the Fourth Proportional to 69,911.10, 104,866.65 and 17,320.23

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Solution

The fourth proportional to 69,911.10, 104,866.65 and 17,320.23 is: 25,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,911.10 : 104,866.65 = 17,320.23 : x
  2. Step 2: Convert to fraction form
    69,911.10/104,866.65 = 17,320.23/x
  3. Step 3: Cross multiply
    69,911.10x = 104,866.65 × 17,320.23
  4. Step 4: Simplify right side
    69,911.10x = 1,816,314,497.33
  5. Step 5: Solve for x
    x = 1,816,314,497.33/69,911.10
  6. Step 6: Final answer
    x = 25,980.35

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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.