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Finding the Fourth Proportional to 64,542.40, 89,068.21 and 35,866.73

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Solution

The fourth proportional to 64,542.40, 89,068.21 and 35,866.73 is: 49,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,542.40 : 89,068.21 = 35,866.73 : x
  2. Step 2: Convert to fraction form
    64,542.40/89,068.21 = 35,866.73/x
  3. Step 3: Cross multiply
    64,542.40x = 89,068.21 × 35,866.73
  4. Step 4: Simplify right side
    64,542.40x = 3,194,584,814.98
  5. Step 5: Solve for x
    x = 3,194,584,814.98/64,542.40
  6. Step 6: Final answer
    x = 49,495.91

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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.