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Finding the Fourth Proportional to 16,671.84, 25,007.76 and 6,809.40

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Solution

The fourth proportional to 16,671.84, 25,007.76 and 6,809.40 is: 10,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,671.84 : 25,007.76 = 6,809.40 : x
  2. Step 2: Convert to fraction form
    16,671.84/25,007.76 = 6,809.40/x
  3. Step 3: Cross multiply
    16,671.84x = 25,007.76 × 6,809.40
  4. Step 4: Simplify right side
    16,671.84x = 170,287,840.94
  5. Step 5: Solve for x
    x = 170,287,840.94/16,671.84
  6. Step 6: Final answer
    x = 10,214.10

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1.5x scale

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.