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Finding the Fourth Proportional to 64,717.50, 89,292.68 and 37,866.60

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Solution

The fourth proportional to 64,717.50, 89,292.68 and 37,866.60 is: 52,245.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,717.50 : 89,292.68 = 37,866.60 : x
  2. Step 2: Convert to fraction form
    64,717.50/89,292.68 = 37,866.60/x
  3. Step 3: Cross multiply
    64,717.50x = 89,292.68 × 37,866.60
  4. Step 4: Simplify right side
    64,717.50x = 3,381,210,196.49
  5. Step 5: Solve for x
    x = 3,381,210,196.49/64,717.50
  6. Step 6: Final answer
    x = 52,245.69

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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.