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Finding the Fourth Proportional to 72,862.38, 100,548.18 and 41,029.38

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Solution

The fourth proportional to 72,862.38, 100,548.18 and 41,029.38 is: 56,619.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,862.38 : 100,548.18 = 41,029.38 : x
  2. Step 2: Convert to fraction form
    72,862.38/100,548.18 = 41,029.38/x
  3. Step 3: Cross multiply
    72,862.38x = 100,548.18 × 41,029.38
  4. Step 4: Simplify right side
    72,862.38x = 4,125,429,485.53
  5. Step 5: Solve for x
    x = 4,125,429,485.53/72,862.38
  6. Step 6: Final answer
    x = 56,619.47

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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.