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Finding the Fourth Proportional to 38,364.60, 57,487.21 and 14,659.21

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Solution

The fourth proportional to 38,364.60, 57,487.21 and 14,659.21 is: 21,966.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,364.60 : 57,487.21 = 14,659.21 : x
  2. Step 2: Convert to fraction form
    38,364.60/57,487.21 = 14,659.21/x
  3. Step 3: Cross multiply
    38,364.60x = 57,487.21 × 14,659.21
  4. Step 4: Simplify right side
    38,364.60x = 842,717,083.70
  5. Step 5: Solve for x
    x = 842,717,083.70/38,364.60
  6. Step 6: Final answer
    x = 21,966.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.