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Finding the Fourth Proportional to 73,639.52, 101,628.36 and 41,809.76

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Solution

The fourth proportional to 73,639.52, 101,628.36 and 41,809.76 is: 57,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,639.52 : 101,628.36 = 41,809.76 : x
  2. Step 2: Convert to fraction form
    73,639.52/101,628.36 = 41,809.76/x
  3. Step 3: Cross multiply
    73,639.52x = 101,628.36 × 41,809.76
  4. Step 4: Simplify right side
    73,639.52x = 4,249,057,340.79
  5. Step 5: Solve for x
    x = 4,249,057,340.79/73,639.52
  6. Step 6: Final answer
    x = 57,700.77

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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.