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Finding the Fourth Proportional to 35,447.68, 48,915.60 and 19,531.24

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Solution

The fourth proportional to 35,447.68, 48,915.60 and 19,531.24 is: 26,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,447.68 : 48,915.60 = 19,531.24 : x
  2. Step 2: Convert to fraction form
    35,447.68/48,915.60 = 19,531.24/x
  3. Step 3: Cross multiply
    35,447.68x = 48,915.60 × 19,531.24
  4. Step 4: Simplify right side
    35,447.68x = 955,382,323.34
  5. Step 5: Solve for x
    x = 955,382,323.34/35,447.68
  6. Step 6: Final answer
    x = 26,951.90

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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.