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Finding the Fourth Proportional to 28,444.65, 42,667.89 and 9,723.93

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Solution

The fourth proportional to 28,444.65, 42,667.89 and 9,723.93 is: 14,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.65 : 42,667.89 = 9,723.93 : x
  2. Step 2: Convert to fraction form
    28,444.65/42,667.89 = 9,723.93/x
  3. Step 3: Cross multiply
    28,444.65x = 42,667.89 × 9,723.93
  4. Step 4: Simplify right side
    28,444.65x = 414,899,673.84
  5. Step 5: Solve for x
    x = 414,899,673.84/28,444.65
  6. Step 6: Final answer
    x = 14,586.21

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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.