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Finding the Fourth Proportional to 61,949.61, 85,490.64 and 33,655.23

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Solution

The fourth proportional to 61,949.61, 85,490.64 and 33,655.23 is: 46,444.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,949.61 : 85,490.64 = 33,655.23 : x
  2. Step 2: Convert to fraction form
    61,949.61/85,490.64 = 33,655.23/x
  3. Step 3: Cross multiply
    61,949.61x = 85,490.64 × 33,655.23
  4. Step 4: Simplify right side
    61,949.61x = 2,877,207,152.05
  5. Step 5: Solve for x
    x = 2,877,207,152.05/61,949.61
  6. Step 6: Final answer
    x = 46,444.31

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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.