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Finding the Fourth Proportional to 61,807.34, 92,680.29 and 19,681.92

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Solution

The fourth proportional to 61,807.34, 92,680.29 and 19,681.92 is: 29,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,807.34 : 92,680.29 = 19,681.92 : x
  2. Step 2: Convert to fraction form
    61,807.34/92,680.29 = 19,681.92/x
  3. Step 3: Cross multiply
    61,807.34x = 92,680.29 × 19,681.92
  4. Step 4: Simplify right side
    61,807.34x = 1,824,126,053.36
  5. Step 5: Solve for x
    x = 1,824,126,053.36/61,807.34
  6. Step 6: Final answer
    x = 29,513.10

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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.