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Finding the Fourth Proportional to 16,853.58, 25,280.48 and 7,491.40

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Solution

The fourth proportional to 16,853.58, 25,280.48 and 7,491.40 is: 11,237.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,853.58 : 25,280.48 = 7,491.40 : x
  2. Step 2: Convert to fraction form
    16,853.58/25,280.48 = 7,491.40/x
  3. Step 3: Cross multiply
    16,853.58x = 25,280.48 × 7,491.40
  4. Step 4: Simplify right side
    16,853.58x = 189,386,143.40
  5. Step 5: Solve for x
    x = 189,386,143.40/16,853.58
  6. Step 6: Final answer
    x = 11,237.15

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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.