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Finding the Fourth Proportional to 86,581.72, 119,477.46 and 48,338.76

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Solution

The fourth proportional to 86,581.72, 119,477.46 and 48,338.76 is: 66,704.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,581.72 : 119,477.46 = 48,338.76 : x
  2. Step 2: Convert to fraction form
    86,581.72/119,477.46 = 48,338.76/x
  3. Step 3: Cross multiply
    86,581.72x = 119,477.46 × 48,338.76
  4. Step 4: Simplify right side
    86,581.72x = 5,775,392,264.35
  5. Step 5: Solve for x
    x = 5,775,392,264.35/86,581.72
  6. Step 6: Final answer
    x = 66,704.52

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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.