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Finding the Fourth Proportional to 61,803, 92,699.84 and 19,681.38

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Solution

The fourth proportional to 61,803, 92,699.84 and 19,681.38 is: 29,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,803 : 92,699.84 = 19,681.38 : x
  2. Step 2: Convert to fraction form
    61,803/92,699.84 = 19,681.38/x
  3. Step 3: Cross multiply
    61,803x = 92,699.84 × 19,681.38
  4. Step 4: Simplify right side
    61,803x = 1,824,460,826.18
  5. Step 5: Solve for x
    x = 1,824,460,826.18/61,803
  6. Step 6: Final answer
    x = 29,520.59

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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.