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Finding the Fourth Proportional to 60,224.88, 90,368.16 and 28,670.64

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Solution

The fourth proportional to 60,224.88, 90,368.16 and 28,670.64 is: 43,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,224.88 : 90,368.16 = 28,670.64 : x
  2. Step 2: Convert to fraction form
    60,224.88/90,368.16 = 28,670.64/x
  3. Step 3: Cross multiply
    60,224.88x = 90,368.16 × 28,670.64
  4. Step 4: Simplify right side
    60,224.88x = 2,590,912,982.82
  5. Step 5: Solve for x
    x = 2,590,912,982.82/60,224.88
  6. Step 6: Final answer
    x = 43,020.64

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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.