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Finding the Fourth Proportional to 61,807.13, 92,706.03 and 19,685.51

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Solution

The fourth proportional to 61,807.13, 92,706.03 and 19,685.51 is: 29,526.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,807.13 : 92,706.03 = 19,685.51 : x
  2. Step 2: Convert to fraction form
    61,807.13/92,706.03 = 19,685.51/x
  3. Step 3: Cross multiply
    61,807.13x = 92,706.03 × 19,685.51
  4. Step 4: Simplify right side
    61,807.13x = 1,824,965,480.63
  5. Step 5: Solve for x
    x = 1,824,965,480.63/61,807.13
  6. Step 6: Final answer
    x = 29,526.78

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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.