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Finding the Fourth Proportional to 64,316.80, 96,508.13 and 30,620.94

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Solution

The fourth proportional to 64,316.80, 96,508.13 and 30,620.94 is: 45,947.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,316.80 : 96,508.13 = 30,620.94 : x
  2. Step 2: Convert to fraction form
    64,316.80/96,508.13 = 30,620.94/x
  3. Step 3: Cross multiply
    64,316.80x = 96,508.13 × 30,620.94
  4. Step 4: Simplify right side
    64,316.80x = 2,955,169,658.24
  5. Step 5: Solve for x
    x = 2,955,169,658.24/64,316.80
  6. Step 6: Final answer
    x = 45,947.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.