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Finding the Fourth Proportional to 56,400.86, 77,833.20 and 33,740.79

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Solution

The fourth proportional to 56,400.86, 77,833.20 and 33,740.79 is: 46,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,400.86 : 77,833.20 = 33,740.79 : x
  2. Step 2: Convert to fraction form
    56,400.86/77,833.20 = 33,740.79/x
  3. Step 3: Cross multiply
    56,400.86x = 77,833.20 × 33,740.79
  4. Step 4: Simplify right side
    56,400.86x = 2,626,153,656.23
  5. Step 5: Solve for x
    x = 2,626,153,656.23/56,400.86
  6. Step 6: Final answer
    x = 46,562.30

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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.