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Finding the Fourth Proportional to 53,308.80, 79,963.58 and 36,618.24

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Solution

The fourth proportional to 53,308.80, 79,963.58 and 36,618.24 is: 54,927.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,308.80 : 79,963.58 = 36,618.24 : x
  2. Step 2: Convert to fraction form
    53,308.80/79,963.58 = 36,618.24/x
  3. Step 3: Cross multiply
    53,308.80x = 79,963.58 × 36,618.24
  4. Step 4: Simplify right side
    53,308.80x = 2,928,125,563.70
  5. Step 5: Solve for x
    x = 2,928,125,563.70/53,308.80
  6. Step 6: Final answer
    x = 54,927.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.