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Finding the Fourth Proportional to 64,866.63, 89,546.13 and 38,005.41

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Solution

The fourth proportional to 64,866.63, 89,546.13 and 38,005.41 is: 52,465.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,866.63 : 89,546.13 = 38,005.41 : x
  2. Step 2: Convert to fraction form
    64,866.63/89,546.13 = 38,005.41/x
  3. Step 3: Cross multiply
    64,866.63x = 89,546.13 × 38,005.41
  4. Step 4: Simplify right side
    64,866.63x = 3,403,237,384.56
  5. Step 5: Solve for x
    x = 3,403,237,384.56/64,866.63
  6. Step 6: Final answer
    x = 52,465.15

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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.