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Finding the Fourth Proportional to 61,220.52, 91,818.69 and 16,835.82

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Solution

The fourth proportional to 61,220.52, 91,818.69 and 16,835.82 is: 25,250.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,220.52 : 91,818.69 = 16,835.82 : x
  2. Step 2: Convert to fraction form
    61,220.52/91,818.69 = 16,835.82/x
  3. Step 3: Cross multiply
    61,220.52x = 91,818.69 × 16,835.82
  4. Step 4: Simplify right side
    61,220.52x = 1,545,842,937.48
  5. Step 5: Solve for x
    x = 1,545,842,937.48/61,220.52
  6. Step 6: Final answer
    x = 25,250.41

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1.5x scale

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.