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Finding the Fourth Proportional to 14,573.65, 21,872.13 and 7,555.66

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Solution

The fourth proportional to 14,573.65, 21,872.13 and 7,555.66 is: 11,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,573.65 : 21,872.13 = 7,555.66 : x
  2. Step 2: Convert to fraction form
    14,573.65/21,872.13 = 7,555.66/x
  3. Step 3: Cross multiply
    14,573.65x = 21,872.13 × 7,555.66
  4. Step 4: Simplify right side
    14,573.65x = 165,258,420.01
  5. Step 5: Solve for x
    x = 165,258,420.01/14,573.65
  6. Step 6: Final answer
    x = 11,339.53

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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.