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Finding the Fourth Proportional to 34,894.84, 48,155.52 and 18,979.42

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Solution

The fourth proportional to 34,894.84, 48,155.52 and 18,979.42 is: 26,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,894.84 : 48,155.52 = 18,979.42 : x
  2. Step 2: Convert to fraction form
    34,894.84/48,155.52 = 18,979.42/x
  3. Step 3: Cross multiply
    34,894.84x = 48,155.52 × 18,979.42
  4. Step 4: Simplify right side
    34,894.84x = 913,963,839.40
  5. Step 5: Solve for x
    x = 913,963,839.40/34,894.84
  6. Step 6: Final answer
    x = 26,191.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.