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Finding the Fourth Proportional to 59,775.86, 82,513.06 and 39,639.49

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Solution

The fourth proportional to 59,775.86, 82,513.06 and 39,639.49 is: 54,717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,775.86 : 82,513.06 = 39,639.49 : x
  2. Step 2: Convert to fraction form
    59,775.86/82,513.06 = 39,639.49/x
  3. Step 3: Cross multiply
    59,775.86x = 82,513.06 × 39,639.49
  4. Step 4: Simplify right side
    59,775.86x = 3,270,775,311.36
  5. Step 5: Solve for x
    x = 3,270,775,311.36/59,775.86
  6. Step 6: Final answer
    x = 54,717.33

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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.