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Finding the Fourth Proportional to 56,813.48, 85,220.23 and 21,753.14

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Solution

The fourth proportional to 56,813.48, 85,220.23 and 21,753.14 is: 32,629.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,813.48 : 85,220.23 = 21,753.14 : x
  2. Step 2: Convert to fraction form
    56,813.48/85,220.23 = 21,753.14/x
  3. Step 3: Cross multiply
    56,813.48x = 85,220.23 × 21,753.14
  4. Step 4: Simplify right side
    56,813.48x = 1,853,807,572.51
  5. Step 5: Solve for x
    x = 1,853,807,572.51/56,813.48
  6. Step 6: Final answer
    x = 32,629.71

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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.