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Finding the Fourth Proportional to 64,974.99, 89,666.24 and 38,117.96

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Solution

The fourth proportional to 64,974.99, 89,666.24 and 38,117.96 is: 52,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,974.99 : 89,666.24 = 38,117.96 : x
  2. Step 2: Convert to fraction form
    64,974.99/89,666.24 = 38,117.96/x
  3. Step 3: Cross multiply
    64,974.99x = 89,666.24 × 38,117.96
  4. Step 4: Simplify right side
    64,974.99x = 3,417,893,510.75
  5. Step 5: Solve for x
    x = 3,417,893,510.75/64,974.99
  6. Step 6: Final answer
    x = 52,603.22

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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.