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Finding the Fourth Proportional to 52,732.70, 72,770.90 and 28,533.58

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Solution

The fourth proportional to 52,732.70, 72,770.90 and 28,533.58 is: 39,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,732.70 : 72,770.90 = 28,533.58 : x
  2. Step 2: Convert to fraction form
    52,732.70/72,770.90 = 28,533.58/x
  3. Step 3: Cross multiply
    52,732.70x = 72,770.90 × 28,533.58
  4. Step 4: Simplify right side
    52,732.70x = 2,076,414,296.82
  5. Step 5: Solve for x
    x = 2,076,414,296.82/52,732.70
  6. Step 6: Final answer
    x = 39,376.22

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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.