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Finding the Fourth Proportional to 86,561.92, 119,461.46 and 48,329

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Solution

The fourth proportional to 86,561.92, 119,461.46 and 48,329 is: 66,697.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,561.92 : 119,461.46 = 48,329 : x
  2. Step 2: Convert to fraction form
    86,561.92/119,461.46 = 48,329/x
  3. Step 3: Cross multiply
    86,561.92x = 119,461.46 × 48,329
  4. Step 4: Simplify right side
    86,561.92x = 5,773,452,900.34
  5. Step 5: Solve for x
    x = 5,773,452,900.34/86,561.92
  6. Step 6: Final answer
    x = 66,697.38

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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.