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Finding the Fourth Proportional to 64,818.65, 89,491.02 and 52,910.30

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Solution

The fourth proportional to 64,818.65, 89,491.02 and 52,910.30 is: 73,049.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,818.65 : 89,491.02 = 52,910.30 : x
  2. Step 2: Convert to fraction form
    64,818.65/89,491.02 = 52,910.30/x
  3. Step 3: Cross multiply
    64,818.65x = 89,491.02 × 52,910.30
  4. Step 4: Simplify right side
    64,818.65x = 4,734,996,715.51
  5. Step 5: Solve for x
    x = 4,734,996,715.51/64,818.65
  6. Step 6: Final answer
    x = 73,049.91

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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.