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Finding the Fourth Proportional to 14,611.79, 21,927.40 and 5,377.79

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Solution

The fourth proportional to 14,611.79, 21,927.40 and 5,377.79 is: 8,070.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.79 : 21,927.40 = 5,377.79 : x
  2. Step 2: Convert to fraction form
    14,611.79/21,927.40 = 5,377.79/x
  3. Step 3: Cross multiply
    14,611.79x = 21,927.40 × 5,377.79
  4. Step 4: Simplify right side
    14,611.79x = 117,920,993.82
  5. Step 5: Solve for x
    x = 117,920,993.82/14,611.79
  6. Step 6: Final answer
    x = 8,070.26

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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.