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Finding the Fourth Proportional to 32,611.95, 48,931.84 and 13,900.79

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Solution

The fourth proportional to 32,611.95, 48,931.84 and 13,900.79 is: 20,857.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,611.95 : 48,931.84 = 13,900.79 : x
  2. Step 2: Convert to fraction form
    32,611.95/48,931.84 = 13,900.79/x
  3. Step 3: Cross multiply
    32,611.95x = 48,931.84 × 13,900.79
  4. Step 4: Simplify right side
    32,611.95x = 680,190,987.49
  5. Step 5: Solve for x
    x = 680,190,987.49/32,611.95
  6. Step 6: Final answer
    x = 20,857.11

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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.