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Finding the Fourth Proportional to 40,602.99, 60,905.16 and 14,308.05

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Solution

The fourth proportional to 40,602.99, 60,905.16 and 14,308.05 is: 21,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,602.99 : 60,905.16 = 14,308.05 : x
  2. Step 2: Convert to fraction form
    40,602.99/60,905.16 = 14,308.05/x
  3. Step 3: Cross multiply
    40,602.99x = 60,905.16 × 14,308.05
  4. Step 4: Simplify right side
    40,602.99x = 871,434,074.54
  5. Step 5: Solve for x
    x = 871,434,074.54/40,602.99
  6. Step 6: Final answer
    x = 21,462.31

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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.