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Finding the Fourth Proportional to 53,499.76, 80,261.80 and 28,526.64

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Solution

The fourth proportional to 53,499.76, 80,261.80 and 28,526.64 is: 42,796.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,499.76 : 80,261.80 = 28,526.64 : x
  2. Step 2: Convert to fraction form
    53,499.76/80,261.80 = 28,526.64/x
  3. Step 3: Cross multiply
    53,499.76x = 80,261.80 × 28,526.64
  4. Step 4: Simplify right side
    53,499.76x = 2,289,599,474.35
  5. Step 5: Solve for x
    x = 2,289,599,474.35/53,499.76
  6. Step 6: Final answer
    x = 42,796.44

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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.