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Finding the Fourth Proportional to 14,342.19, 21,597.54 and 12,515.10

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Solution

The fourth proportional to 14,342.19, 21,597.54 and 12,515.10 is: 18,846.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,342.19 : 21,597.54 = 12,515.10 : x
  2. Step 2: Convert to fraction form
    14,342.19/21,597.54 = 12,515.10/x
  3. Step 3: Cross multiply
    14,342.19x = 21,597.54 × 12,515.10
  4. Step 4: Simplify right side
    14,342.19x = 270,295,372.85
  5. Step 5: Solve for x
    x = 270,295,372.85/14,342.19
  6. Step 6: Final answer
    x = 18,846.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.