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Finding the Fourth Proportional to 28,991.69, 43,493.00 and 9,264.95

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Solution

The fourth proportional to 28,991.69, 43,493.00 and 9,264.95 is: 13,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.69 : 43,493.00 = 9,264.95 : x
  2. Step 2: Convert to fraction form
    28,991.69/43,493.00 = 9,264.95/x
  3. Step 3: Cross multiply
    28,991.69x = 43,493.00 × 9,264.95
  4. Step 4: Simplify right side
    28,991.69x = 402,960,206.56
  5. Step 5: Solve for x
    x = 402,960,206.56/28,991.69
  6. Step 6: Final answer
    x = 13,899.16

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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.