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Finding the Fourth Proportional to 61,301.96, 84,606.56 and 57,299.76

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Solution

The fourth proportional to 61,301.96, 84,606.56 and 57,299.76 is: 79,082.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,301.96 : 84,606.56 = 57,299.76 : x
  2. Step 2: Convert to fraction form
    61,301.96/84,606.56 = 57,299.76/x
  3. Step 3: Cross multiply
    61,301.96x = 84,606.56 × 57,299.76
  4. Step 4: Simplify right side
    61,301.96x = 4,847,935,582.43
  5. Step 5: Solve for x
    x = 4,847,935,582.43/61,301.96
  6. Step 6: Final answer
    x = 79,082.88

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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.