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Finding the Fourth Proportional to 59,172.49, 81,747.11 and 38,803.01

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Solution

The fourth proportional to 59,172.49, 81,747.11 and 38,803.01 is: 53,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,172.49 : 81,747.11 = 38,803.01 : x
  2. Step 2: Convert to fraction form
    59,172.49/81,747.11 = 38,803.01/x
  3. Step 3: Cross multiply
    59,172.49x = 81,747.11 × 38,803.01
  4. Step 4: Simplify right side
    59,172.49x = 3,172,033,732.79
  5. Step 5: Solve for x
    x = 3,172,033,732.79/59,172.49
  6. Step 6: Final answer
    x = 53,606.57

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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.