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Finding the Fourth Proportional to 64,661.04, 89,288.28 and 47,694.69

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Solution

The fourth proportional to 64,661.04, 89,288.28 and 47,694.69 is: 65,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,661.04 : 89,288.28 = 47,694.69 : x
  2. Step 2: Convert to fraction form
    64,661.04/89,288.28 = 47,694.69/x
  3. Step 3: Cross multiply
    64,661.04x = 89,288.28 × 47,694.69
  4. Step 4: Simplify right side
    64,661.04x = 4,258,576,835.23
  5. Step 5: Solve for x
    x = 4,258,576,835.23/64,661.04
  6. Step 6: Final answer
    x = 65,860.01

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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.