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Finding the Fourth Proportional to 61,558.86, 92,326.77 and 38,328.78

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Solution

The fourth proportional to 61,558.86, 92,326.77 and 38,328.78 is: 57,486.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,558.86 : 92,326.77 = 38,328.78 : x
  2. Step 2: Convert to fraction form
    61,558.86/92,326.77 = 38,328.78/x
  3. Step 3: Cross multiply
    61,558.86x = 92,326.77 × 38,328.78
  4. Step 4: Simplify right side
    61,558.86x = 3,538,772,455.44
  5. Step 5: Solve for x
    x = 3,538,772,455.44/61,558.86
  6. Step 6: Final answer
    x = 57,486.00

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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.