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Finding the Fourth Proportional to 28,993.65, 43,487.73 and 9,266.91

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Solution

The fourth proportional to 28,993.65, 43,487.73 and 9,266.91 is: 13,899.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,993.65 : 43,487.73 = 9,266.91 : x
  2. Step 2: Convert to fraction form
    28,993.65/43,487.73 = 9,266.91/x
  3. Step 3: Cross multiply
    28,993.65x = 43,487.73 × 9,266.91
  4. Step 4: Simplify right side
    28,993.65x = 402,996,880.01
  5. Step 5: Solve for x
    x = 402,996,880.01/28,993.65
  6. Step 6: Final answer
    x = 13,899.49

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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.