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Finding the Fourth Proportional to 72,904.25, 109,356.36 and 17,500.25

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Solution

The fourth proportional to 72,904.25, 109,356.36 and 17,500.25 is: 26,250.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,904.25 : 109,356.36 = 17,500.25 : x
  2. Step 2: Convert to fraction form
    72,904.25/109,356.36 = 17,500.25/x
  3. Step 3: Cross multiply
    72,904.25x = 109,356.36 × 17,500.25
  4. Step 4: Simplify right side
    72,904.25x = 1,913,763,092.31
  5. Step 5: Solve for x
    x = 1,913,763,092.31/72,904.25
  6. Step 6: Final answer
    x = 26,250.37

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Double scale
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Similar ratio
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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.