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Finding the Fourth Proportional to 61,676.34, 85,115.41 and 37,798.40

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Solution

The fourth proportional to 61,676.34, 85,115.41 and 37,798.40 is: 52,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,676.34 : 85,115.41 = 37,798.40 : x
  2. Step 2: Convert to fraction form
    61,676.34/85,115.41 = 37,798.40/x
  3. Step 3: Cross multiply
    61,676.34x = 85,115.41 × 37,798.40
  4. Step 4: Simplify right side
    61,676.34x = 3,217,226,313.34
  5. Step 5: Solve for x
    x = 3,217,226,313.34/61,676.34
  6. Step 6: Final answer
    x = 52,163.05

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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.