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Finding the Fourth Proportional to 29,931.40, 44,897.10 and 18,704.80

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Solution

The fourth proportional to 29,931.40, 44,897.10 and 18,704.80 is: 28,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,931.40 : 44,897.10 = 18,704.80 : x
  2. Step 2: Convert to fraction form
    29,931.40/44,897.10 = 18,704.80/x
  3. Step 3: Cross multiply
    29,931.40x = 44,897.10 × 18,704.80
  4. Step 4: Simplify right side
    29,931.40x = 839,791,276.08
  5. Step 5: Solve for x
    x = 839,791,276.08/29,931.40
  6. Step 6: Final answer
    x = 28,057.20

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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.