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Finding the Fourth Proportional to 57,349, 86,030.79 and 15,796

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Solution

The fourth proportional to 57,349, 86,030.79 and 15,796 is: 23,696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,349 : 86,030.79 = 15,796 : x
  2. Step 2: Convert to fraction form
    57,349/86,030.79 = 15,796/x
  3. Step 3: Cross multiply
    57,349x = 86,030.79 × 15,796
  4. Step 4: Simplify right side
    57,349x = 1,358,942,358.84
  5. Step 5: Solve for x
    x = 1,358,942,358.84/57,349
  6. Step 6: Final answer
    x = 23,696.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.