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Finding the Fourth Proportional to 53,288.80, 73,538.80 and 29,415.04

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Solution

The fourth proportional to 53,288.80, 73,538.80 and 29,415.04 is: 40,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,288.80 : 73,538.80 = 29,415.04 : x
  2. Step 2: Convert to fraction form
    53,288.80/73,538.80 = 29,415.04/x
  3. Step 3: Cross multiply
    53,288.80x = 73,538.80 × 29,415.04
  4. Step 4: Simplify right side
    53,288.80x = 2,163,146,743.55
  5. Step 5: Solve for x
    x = 2,163,146,743.55/53,288.80
  6. Step 6: Final answer
    x = 40,592.90

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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.