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Finding the Fourth Proportional to 35,889.60, 53,801.28 and 19,261.28

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Solution

The fourth proportional to 35,889.60, 53,801.28 and 19,261.28 is: 28,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,889.60 : 53,801.28 = 19,261.28 : x
  2. Step 2: Convert to fraction form
    35,889.60/53,801.28 = 19,261.28/x
  3. Step 3: Cross multiply
    35,889.60x = 53,801.28 × 19,261.28
  4. Step 4: Simplify right side
    35,889.60x = 1,036,281,518.44
  5. Step 5: Solve for x
    x = 1,036,281,518.44/35,889.60
  6. Step 6: Final answer
    x = 28,874.15

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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.