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Finding the Fourth Proportional to 56,808.24, 85,212.48 and 35,988

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Solution

The fourth proportional to 56,808.24, 85,212.48 and 35,988 is: 53,982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,808.24 : 85,212.48 = 35,988 : x
  2. Step 2: Convert to fraction form
    56,808.24/85,212.48 = 35,988/x
  3. Step 3: Cross multiply
    56,808.24x = 85,212.48 × 35,988
  4. Step 4: Simplify right side
    56,808.24x = 3,066,626,730.24
  5. Step 5: Solve for x
    x = 3,066,626,730.24/56,808.24
  6. Step 6: Final answer
    x = 53,982.08

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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.