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Finding the Fourth Proportional to 29,235.70, 43,857.60 and 10,511.20

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Solution

The fourth proportional to 29,235.70, 43,857.60 and 10,511.20 is: 15,768.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,235.70 : 43,857.60 = 10,511.20 : x
  2. Step 2: Convert to fraction form
    29,235.70/43,857.60 = 10,511.20/x
  3. Step 3: Cross multiply
    29,235.70x = 43,857.60 × 10,511.20
  4. Step 4: Simplify right side
    29,235.70x = 460,996,005.12
  5. Step 5: Solve for x
    x = 460,996,005.12/29,235.70
  6. Step 6: Final answer
    x = 15,768.26

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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.