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Finding the Fourth Proportional to 62,422.94, 86,143.80 and 34,130.45

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Solution

The fourth proportional to 62,422.94, 86,143.80 and 34,130.45 is: 47,100.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,422.94 : 86,143.80 = 34,130.45 : x
  2. Step 2: Convert to fraction form
    62,422.94/86,143.80 = 34,130.45/x
  3. Step 3: Cross multiply
    62,422.94x = 86,143.80 × 34,130.45
  4. Step 4: Simplify right side
    62,422.94x = 2,940,126,057.34
  5. Step 5: Solve for x
    x = 2,940,126,057.34/62,422.94
  6. Step 6: Final answer
    x = 47,100.09

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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.