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Finding the Fourth Proportional to 14,920.74, 22,360.94 and 5,681.70

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Solution

The fourth proportional to 14,920.74, 22,360.94 and 5,681.70 is: 8,514.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.74 : 22,360.94 = 5,681.70 : x
  2. Step 2: Convert to fraction form
    14,920.74/22,360.94 = 5,681.70/x
  3. Step 3: Cross multiply
    14,920.74x = 22,360.94 × 5,681.70
  4. Step 4: Simplify right side
    14,920.74x = 127,048,040.99
  5. Step 5: Solve for x
    x = 127,048,040.99/14,920.74
  6. Step 6: Final answer
    x = 8,514.86

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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.