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Finding the Fourth Proportional to 36,613, 50,488.20 and 31,325.32

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Solution

The fourth proportional to 36,613, 50,488.20 and 31,325.32 is: 43,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,613 : 50,488.20 = 31,325.32 : x
  2. Step 2: Convert to fraction form
    36,613/50,488.20 = 31,325.32/x
  3. Step 3: Cross multiply
    36,613x = 50,488.20 × 31,325.32
  4. Step 4: Simplify right side
    36,613x = 1,581,559,021.22
  5. Step 5: Solve for x
    x = 1,581,559,021.22/36,613
  6. Step 6: Final answer
    x = 43,196.65

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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.