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Finding the Fourth Proportional to 52,376.70, 72,280.20 and 28,503.54

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Solution

The fourth proportional to 52,376.70, 72,280.20 and 28,503.54 is: 39,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,376.70 : 72,280.20 = 28,503.54 : x
  2. Step 2: Convert to fraction form
    52,376.70/72,280.20 = 28,503.54/x
  3. Step 3: Cross multiply
    52,376.70x = 72,280.20 × 28,503.54
  4. Step 4: Simplify right side
    52,376.70x = 2,060,241,571.91
  5. Step 5: Solve for x
    x = 2,060,241,571.91/52,376.70
  6. Step 6: Final answer
    x = 39,335.08

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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.