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Finding the Fourth Proportional to 60,420.61, 83,420.77 and 37,791.64

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Solution

The fourth proportional to 60,420.61, 83,420.77 and 37,791.64 is: 52,177.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,420.61 : 83,420.77 = 37,791.64 : x
  2. Step 2: Convert to fraction form
    60,420.61/83,420.77 = 37,791.64/x
  3. Step 3: Cross multiply
    60,420.61x = 83,420.77 × 37,791.64
  4. Step 4: Simplify right side
    60,420.61x = 3,152,607,708.36
  5. Step 5: Solve for x
    x = 3,152,607,708.36/60,420.61
  6. Step 6: Final answer
    x = 52,177.69

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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.