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Finding the Fourth Proportional to 72,603.54, 108,866.70 and 25,206.66

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Solution

The fourth proportional to 72,603.54, 108,866.70 and 25,206.66 is: 37,796.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,603.54 : 108,866.70 = 25,206.66 : x
  2. Step 2: Convert to fraction form
    72,603.54/108,866.70 = 25,206.66/x
  3. Step 3: Cross multiply
    72,603.54x = 108,866.70 × 25,206.66
  4. Step 4: Simplify right side
    72,603.54x = 2,744,165,892.22
  5. Step 5: Solve for x
    x = 2,744,165,892.22/72,603.54
  6. Step 6: Final answer
    x = 37,796.59

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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.