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Finding the Fourth Proportional to 56,402.79, 77,833.53 and 33,728.42

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Solution

The fourth proportional to 56,402.79, 77,833.53 and 33,728.42 is: 46,543.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,402.79 : 77,833.53 = 33,728.42 : x
  2. Step 2: Convert to fraction form
    56,402.79/77,833.53 = 33,728.42/x
  3. Step 3: Cross multiply
    56,402.79x = 77,833.53 × 33,728.42
  4. Step 4: Simplify right side
    56,402.79x = 2,625,201,600.75
  5. Step 5: Solve for x
    x = 2,625,201,600.75/56,402.79
  6. Step 6: Final answer
    x = 46,543.83

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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.