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Finding the Fourth Proportional to 60,700.93, 91,060.76 and 20,710.54

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Solution

The fourth proportional to 60,700.93, 91,060.76 and 20,710.54 is: 31,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,700.93 : 91,060.76 = 20,710.54 : x
  2. Step 2: Convert to fraction form
    60,700.93/91,060.76 = 20,710.54/x
  3. Step 3: Cross multiply
    60,700.93x = 91,060.76 × 20,710.54
  4. Step 4: Simplify right side
    60,700.93x = 1,885,917,512.41
  5. Step 5: Solve for x
    x = 1,885,917,512.41/60,700.93
  6. Step 6: Final answer
    x = 31,069.01

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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.