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Finding the Fourth Proportional to 25,925.92, 38,894.88 and 12,784.48

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Solution

The fourth proportional to 25,925.92, 38,894.88 and 12,784.48 is: 19,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,925.92 : 38,894.88 = 12,784.48 : x
  2. Step 2: Convert to fraction form
    25,925.92/38,894.88 = 12,784.48/x
  3. Step 3: Cross multiply
    25,925.92x = 38,894.88 × 12,784.48
  4. Step 4: Simplify right side
    25,925.92x = 497,250,815.46
  5. Step 5: Solve for x
    x = 497,250,815.46/25,925.92
  6. Step 6: Final answer
    x = 19,179.68

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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.