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Finding the Fourth Proportional to 14,458.69, 21,687.67 and 6,667.50

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Solution

The fourth proportional to 14,458.69, 21,687.67 and 6,667.50 is: 10,001.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,458.69 : 21,687.67 = 6,667.50 : x
  2. Step 2: Convert to fraction form
    14,458.69/21,687.67 = 6,667.50/x
  3. Step 3: Cross multiply
    14,458.69x = 21,687.67 × 6,667.50
  4. Step 4: Simplify right side
    14,458.69x = 144,602,539.73
  5. Step 5: Solve for x
    x = 144,602,539.73/14,458.69
  6. Step 6: Final answer
    x = 10,001.08

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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.