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Finding the Fourth Proportional to 86,611.80, 129,917.70 and 24,274.20

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Solution

The fourth proportional to 86,611.80, 129,917.70 and 24,274.20 is: 36,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,611.80 : 129,917.70 = 24,274.20 : x
  2. Step 2: Convert to fraction form
    86,611.80/129,917.70 = 24,274.20/x
  3. Step 3: Cross multiply
    86,611.80x = 129,917.70 × 24,274.20
  4. Step 4: Simplify right side
    86,611.80x = 3,153,648,233.34
  5. Step 5: Solve for x
    x = 3,153,648,233.34/86,611.80
  6. Step 6: Final answer
    x = 36,411.30

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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.