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Finding the Fourth Proportional to 32,568.50, 44,946.78 and 18,421.40

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Solution

The fourth proportional to 32,568.50, 44,946.78 and 18,421.40 is: 25,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,568.50 : 44,946.78 = 18,421.40 : x
  2. Step 2: Convert to fraction form
    32,568.50/44,946.78 = 18,421.40/x
  3. Step 3: Cross multiply
    32,568.50x = 44,946.78 × 18,421.40
  4. Step 4: Simplify right side
    32,568.50x = 827,982,613.09
  5. Step 5: Solve for x
    x = 827,982,613.09/32,568.50
  6. Step 6: Final answer
    x = 25,422.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.