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Finding the Fourth Proportional to 14,304.42, 19,740.06 and 8,715.42

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Solution

The fourth proportional to 14,304.42, 19,740.06 and 8,715.42 is: 12,027.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,304.42 : 19,740.06 = 8,715.42 : x
  2. Step 2: Convert to fraction form
    14,304.42/19,740.06 = 8,715.42/x
  3. Step 3: Cross multiply
    14,304.42x = 19,740.06 × 8,715.42
  4. Step 4: Simplify right side
    14,304.42x = 172,042,913.73
  5. Step 5: Solve for x
    x = 172,042,913.73/14,304.42
  6. Step 6: Final answer
    x = 12,027.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.