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Finding the Fourth Proportional to 64,549.85, 89,053.90 and 47,594.32

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Solution

The fourth proportional to 64,549.85, 89,053.90 and 47,594.32 is: 65,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,549.85 : 89,053.90 = 47,594.32 : x
  2. Step 2: Convert to fraction form
    64,549.85/89,053.90 = 47,594.32/x
  3. Step 3: Cross multiply
    64,549.85x = 89,053.90 × 47,594.32
  4. Step 4: Simplify right side
    64,549.85x = 4,238,459,472.23
  5. Step 5: Solve for x
    x = 4,238,459,472.23/64,549.85
  6. Step 6: Final answer
    x = 65,661.81

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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.