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Finding the Fourth Proportional to 61,840.98, 92,768.76 and 19,706.40

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Solution

The fourth proportional to 61,840.98, 92,768.76 and 19,706.40 is: 29,561.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,840.98 : 92,768.76 = 19,706.40 : x
  2. Step 2: Convert to fraction form
    61,840.98/92,768.76 = 19,706.40/x
  3. Step 3: Cross multiply
    61,840.98x = 92,768.76 × 19,706.40
  4. Step 4: Simplify right side
    61,840.98x = 1,828,138,292.06
  5. Step 5: Solve for x
    x = 1,828,138,292.06/61,840.98
  6. Step 6: Final answer
    x = 29,561.92

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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.