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Finding the Fourth Proportional to 52,447.70, 72,377.60 and 28,574.30

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Solution

The fourth proportional to 52,447.70, 72,377.60 and 28,574.30 is: 39,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,447.70 : 72,377.60 = 28,574.30 : x
  2. Step 2: Convert to fraction form
    52,447.70/72,377.60 = 28,574.30/x
  3. Step 3: Cross multiply
    52,447.70x = 72,377.60 × 28,574.30
  4. Step 4: Simplify right side
    52,447.70x = 2,068,139,255.68
  5. Step 5: Solve for x
    x = 2,068,139,255.68/52,447.70
  6. Step 6: Final answer
    x = 39,432.41

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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.