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Finding the Fourth Proportional to 37,653.40, 56,463.90 and 18,926.20

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Solution

The fourth proportional to 37,653.40, 56,463.90 and 18,926.20 is: 28,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,653.40 : 56,463.90 = 18,926.20 : x
  2. Step 2: Convert to fraction form
    37,653.40/56,463.90 = 18,926.20/x
  3. Step 3: Cross multiply
    37,653.40x = 56,463.90 × 18,926.20
  4. Step 4: Simplify right side
    37,653.40x = 1,068,647,064.18
  5. Step 5: Solve for x
    x = 1,068,647,064.18/37,653.40
  6. Step 6: Final answer
    x = 28,381.16

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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.