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Finding the Fourth Proportional to 14,573.55, 21,859.11 and 8,725.89

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Solution

The fourth proportional to 14,573.55, 21,859.11 and 8,725.89 is: 13,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,573.55 : 21,859.11 = 8,725.89 : x
  2. Step 2: Convert to fraction form
    14,573.55/21,859.11 = 8,725.89/x
  3. Step 3: Cross multiply
    14,573.55x = 21,859.11 × 8,725.89
  4. Step 4: Simplify right side
    14,573.55x = 190,740,189.36
  5. Step 5: Solve for x
    x = 190,740,189.36/14,573.55
  6. Step 6: Final answer
    x = 13,088.11

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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.