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Finding the Fourth Proportional to 35,335.68, 48,782.88 and 21,192

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Solution

The fourth proportional to 35,335.68, 48,782.88 and 21,192 is: 29,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,335.68 : 48,782.88 = 21,192 : x
  2. Step 2: Convert to fraction form
    35,335.68/48,782.88 = 21,192/x
  3. Step 3: Cross multiply
    35,335.68x = 48,782.88 × 21,192
  4. Step 4: Simplify right side
    35,335.68x = 1,033,806,792.96
  5. Step 5: Solve for x
    x = 1,033,806,792.96/35,335.68
  6. Step 6: Final answer
    x = 29,256.74

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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.