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Finding the Fourth Proportional to 40,193.65, 60,290.79 and 10,611.28

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Solution

The fourth proportional to 40,193.65, 60,290.79 and 10,611.28 is: 15,917.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,193.65 : 60,290.79 = 10,611.28 : x
  2. Step 2: Convert to fraction form
    40,193.65/60,290.79 = 10,611.28/x
  3. Step 3: Cross multiply
    40,193.65x = 60,290.79 × 10,611.28
  4. Step 4: Simplify right side
    40,193.65x = 639,762,454.11
  5. Step 5: Solve for x
    x = 639,762,454.11/40,193.65
  6. Step 6: Final answer
    x = 15,917.00

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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.