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Finding the Fourth Proportional to 62,639.88, 86,443.40 and 33,959.76

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Solution

The fourth proportional to 62,639.88, 86,443.40 and 33,959.76 is: 46,864.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,639.88 : 86,443.40 = 33,959.76 : x
  2. Step 2: Convert to fraction form
    62,639.88/86,443.40 = 33,959.76/x
  3. Step 3: Cross multiply
    62,639.88x = 86,443.40 × 33,959.76
  4. Step 4: Simplify right side
    62,639.88x = 2,935,597,117.58
  5. Step 5: Solve for x
    x = 2,935,597,117.58/62,639.88
  6. Step 6: Final answer
    x = 46,864.67

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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.