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Finding the Fourth Proportional to 19,925.94, 29,888.64 and 6,787.48

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Solution

The fourth proportional to 19,925.94, 29,888.64 and 6,787.48 is: 10,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,925.94 : 29,888.64 = 6,787.48 : x
  2. Step 2: Convert to fraction form
    19,925.94/29,888.64 = 6,787.48/x
  3. Step 3: Cross multiply
    19,925.94x = 29,888.64 × 6,787.48
  4. Step 4: Simplify right side
    19,925.94x = 202,868,546.23
  5. Step 5: Solve for x
    x = 202,868,546.23/19,925.94
  6. Step 6: Final answer
    x = 10,181.13

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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.