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Finding the Fourth Proportional to 58,266, 80,437.32 and 39,245.76

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Solution

The fourth proportional to 58,266, 80,437.32 and 39,245.76 is: 54,179.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,266 : 80,437.32 = 39,245.76 : x
  2. Step 2: Convert to fraction form
    58,266/80,437.32 = 39,245.76/x
  3. Step 3: Cross multiply
    58,266x = 80,437.32 × 39,245.76
  4. Step 4: Simplify right side
    58,266x = 3,156,823,755.76
  5. Step 5: Solve for x
    x = 3,156,823,755.76/58,266
  6. Step 6: Final answer
    x = 54,179.52

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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.