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Finding the Fourth Proportional to 61,328.64, 92,028.65 and 25,787.39

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Solution

The fourth proportional to 61,328.64, 92,028.65 and 25,787.39 is: 38,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,328.64 : 92,028.65 = 25,787.39 : x
  2. Step 2: Convert to fraction form
    61,328.64/92,028.65 = 25,787.39/x
  3. Step 3: Cross multiply
    61,328.64x = 92,028.65 × 25,787.39
  4. Step 4: Simplify right side
    61,328.64x = 2,373,178,099.64
  5. Step 5: Solve for x
    x = 2,373,178,099.64/61,328.64
  6. Step 6: Final answer
    x = 38,696.08

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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.