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Finding the Fourth Proportional to 14,611.90, 21,888.98 and 9,666.58

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Solution

The fourth proportional to 14,611.90, 21,888.98 and 9,666.58 is: 14,480.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.90 : 21,888.98 = 9,666.58 : x
  2. Step 2: Convert to fraction form
    14,611.90/21,888.98 = 9,666.58/x
  3. Step 3: Cross multiply
    14,611.90x = 21,888.98 × 9,666.58
  4. Step 4: Simplify right side
    14,611.90x = 211,591,576.29
  5. Step 5: Solve for x
    x = 211,591,576.29/14,611.90
  6. Step 6: Final answer
    x = 14,480.77

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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.