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Finding the Fourth Proportional to 35,489.50, 48,975.87 and 21,342.58

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Solution

The fourth proportional to 35,489.50, 48,975.87 and 21,342.58 is: 29,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,489.50 : 48,975.87 = 21,342.58 : x
  2. Step 2: Convert to fraction form
    35,489.50/48,975.87 = 21,342.58/x
  3. Step 3: Cross multiply
    35,489.50x = 48,975.87 × 21,342.58
  4. Step 4: Simplify right side
    35,489.50x = 1,045,271,423.54
  5. Step 5: Solve for x
    x = 1,045,271,423.54/35,489.50
  6. Step 6: Final answer
    x = 29,452.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.