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Finding the Fourth Proportional to 56,710.82, 78,253.08 and 32,828.78

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Solution

The fourth proportional to 56,710.82, 78,253.08 and 32,828.78 is: 45,299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,710.82 : 78,253.08 = 32,828.78 : x
  2. Step 2: Convert to fraction form
    56,710.82/78,253.08 = 32,828.78/x
  3. Step 3: Cross multiply
    56,710.82x = 78,253.08 × 32,828.78
  4. Step 4: Simplify right side
    56,710.82x = 2,568,953,147.64
  5. Step 5: Solve for x
    x = 2,568,953,147.64/56,710.82
  6. Step 6: Final answer
    x = 45,299.17

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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.