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Finding the Fourth Proportional to 59,478.80, 82,087.68 and 33,989.32

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Solution

The fourth proportional to 59,478.80, 82,087.68 and 33,989.32 is: 46,909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,478.80 : 82,087.68 = 33,989.32 : x
  2. Step 2: Convert to fraction form
    59,478.80/82,087.68 = 33,989.32/x
  3. Step 3: Cross multiply
    59,478.80x = 82,087.68 × 33,989.32
  4. Step 4: Simplify right side
    59,478.80x = 2,790,104,423.58
  5. Step 5: Solve for x
    x = 2,790,104,423.58/59,478.80
  6. Step 6: Final answer
    x = 46,909.23

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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.