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Finding the Fourth Proportional to 14,197.98, 21,310.08 and 7,182.93

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Solution

The fourth proportional to 14,197.98, 21,310.08 and 7,182.93 is: 10,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,197.98 : 21,310.08 = 7,182.93 : x
  2. Step 2: Convert to fraction form
    14,197.98/21,310.08 = 7,182.93/x
  3. Step 3: Cross multiply
    14,197.98x = 21,310.08 × 7,182.93
  4. Step 4: Simplify right side
    14,197.98x = 153,068,812.93
  5. Step 5: Solve for x
    x = 153,068,812.93/14,197.98
  6. Step 6: Final answer
    x = 10,781.03

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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.