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Finding the Fourth Proportional to 45,297.83, 67,916.76 and 21,609.03

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Solution

The fourth proportional to 45,297.83, 67,916.76 and 21,609.03 is: 32,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,297.83 : 67,916.76 = 21,609.03 : x
  2. Step 2: Convert to fraction form
    45,297.83/67,916.76 = 21,609.03/x
  3. Step 3: Cross multiply
    45,297.83x = 67,916.76 × 21,609.03
  4. Step 4: Simplify right side
    45,297.83x = 1,467,615,513.81
  5. Step 5: Solve for x
    x = 1,467,615,513.81/45,297.83
  6. Step 6: Final answer
    x = 32,399.24

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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.