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Finding the Fourth Proportional to 61,666.31, 85,028.57 and 45,556.92

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Solution

The fourth proportional to 61,666.31, 85,028.57 and 45,556.92 is: 62,816.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,666.31 : 85,028.57 = 45,556.92 : x
  2. Step 2: Convert to fraction form
    61,666.31/85,028.57 = 45,556.92/x
  3. Step 3: Cross multiply
    61,666.31x = 85,028.57 × 45,556.92
  4. Step 4: Simplify right side
    61,666.31x = 3,873,639,533.42
  5. Step 5: Solve for x
    x = 3,873,639,533.42/61,666.31
  6. Step 6: Final answer
    x = 62,816.14

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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.