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Finding the Fourth Proportional to 28,858.81, 43,293.81 and 11,088.16

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Solution

The fourth proportional to 28,858.81, 43,293.81 and 11,088.16 is: 16,634.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858.81 : 43,293.81 = 11,088.16 : x
  2. Step 2: Convert to fraction form
    28,858.81/43,293.81 = 11,088.16/x
  3. Step 3: Cross multiply
    28,858.81x = 43,293.81 × 11,088.16
  4. Step 4: Simplify right side
    28,858.81x = 480,048,692.29
  5. Step 5: Solve for x
    x = 480,048,692.29/28,858.81
  6. Step 6: Final answer
    x = 16,634.39

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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.