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Finding the Fourth Proportional to 38,847.80, 58,271.70 and 16,657.40

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Solution

The fourth proportional to 38,847.80, 58,271.70 and 16,657.40 is: 24,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,847.80 : 58,271.70 = 16,657.40 : x
  2. Step 2: Convert to fraction form
    38,847.80/58,271.70 = 16,657.40/x
  3. Step 3: Cross multiply
    38,847.80x = 58,271.70 × 16,657.40
  4. Step 4: Simplify right side
    38,847.80x = 970,655,015.58
  5. Step 5: Solve for x
    x = 970,655,015.58/38,847.80
  6. Step 6: Final answer
    x = 24,986.10

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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.