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Finding the Fourth Proportional to 60,468.62, 90,602.49 and 21,004.34

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Solution

The fourth proportional to 60,468.62, 90,602.49 and 21,004.34 is: 31,471.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,468.62 : 90,602.49 = 21,004.34 : x
  2. Step 2: Convert to fraction form
    60,468.62/90,602.49 = 21,004.34/x
  3. Step 3: Cross multiply
    60,468.62x = 90,602.49 × 21,004.34
  4. Step 4: Simplify right side
    60,468.62x = 1,903,045,504.81
  5. Step 5: Solve for x
    x = 1,903,045,504.81/60,468.62
  6. Step 6: Final answer
    x = 31,471.62

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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.