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Finding the Fourth Proportional to 52,873.75, 72,966.34 and 28,674.76

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Solution

The fourth proportional to 52,873.75, 72,966.34 and 28,674.76 is: 39,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,873.75 : 72,966.34 = 28,674.76 : x
  2. Step 2: Convert to fraction form
    52,873.75/72,966.34 = 28,674.76/x
  3. Step 3: Cross multiply
    52,873.75x = 72,966.34 × 28,674.76
  4. Step 4: Simplify right side
    52,873.75x = 2,092,292,033.48
  5. Step 5: Solve for x
    x = 2,092,292,033.48/52,873.75
  6. Step 6: Final answer
    x = 39,571.47

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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.