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Finding the Fourth Proportional to 60,611.80, 90,917.70 and 16,245.40

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Solution

The fourth proportional to 60,611.80, 90,917.70 and 16,245.40 is: 24,368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,611.80 : 90,917.70 = 16,245.40 : x
  2. Step 2: Convert to fraction form
    60,611.80/90,917.70 = 16,245.40/x
  3. Step 3: Cross multiply
    60,611.80x = 90,917.70 × 16,245.40
  4. Step 4: Simplify right side
    60,611.80x = 1,476,994,403.58
  5. Step 5: Solve for x
    x = 1,476,994,403.58/60,611.80
  6. Step 6: Final answer
    x = 24,368.10

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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.