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Finding the Fourth Proportional to 16,895.10, 25,342.65 and 7,661.10

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Solution

The fourth proportional to 16,895.10, 25,342.65 and 7,661.10 is: 11,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,895.10 : 25,342.65 = 7,661.10 : x
  2. Step 2: Convert to fraction form
    16,895.10/25,342.65 = 7,661.10/x
  3. Step 3: Cross multiply
    16,895.10x = 25,342.65 × 7,661.10
  4. Step 4: Simplify right side
    16,895.10x = 194,152,575.92
  5. Step 5: Solve for x
    x = 194,152,575.92/16,895.10
  6. Step 6: Final answer
    x = 11,491.65

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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.