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Finding the Fourth Proportional to 29,133.20, 43,710.60 and 28,053.20

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Solution

The fourth proportional to 29,133.20, 43,710.60 and 28,053.20 is: 42,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,133.20 : 43,710.60 = 28,053.20 : x
  2. Step 2: Convert to fraction form
    29,133.20/43,710.60 = 28,053.20/x
  3. Step 3: Cross multiply
    29,133.20x = 43,710.60 × 28,053.20
  4. Step 4: Simplify right side
    29,133.20x = 1,226,222,203.92
  5. Step 5: Solve for x
    x = 1,226,222,203.92/29,133.20
  6. Step 6: Final answer
    x = 42,090.20

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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.