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Finding the Fourth Proportional to 29,784.80, 41,110.40 and 17,216.80

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Solution

The fourth proportional to 29,784.80, 41,110.40 and 17,216.80 is: 23,763.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,784.80 : 41,110.40 = 17,216.80 : x
  2. Step 2: Convert to fraction form
    29,784.80/41,110.40 = 17,216.80/x
  3. Step 3: Cross multiply
    29,784.80x = 41,110.40 × 17,216.80
  4. Step 4: Simplify right side
    29,784.80x = 707,789,534.72
  5. Step 5: Solve for x
    x = 707,789,534.72/29,784.80
  6. Step 6: Final answer
    x = 23,763.45

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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.