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Finding the Fourth Proportional to 35,479.90, 48,961.62 and 19,347.40

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Solution

The fourth proportional to 35,479.90, 48,961.62 and 19,347.40 is: 26,699.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.90 : 48,961.62 = 19,347.40 : x
  2. Step 2: Convert to fraction form
    35,479.90/48,961.62 = 19,347.40/x
  3. Step 3: Cross multiply
    35,479.90x = 48,961.62 × 19,347.40
  4. Step 4: Simplify right side
    35,479.90x = 947,280,046.79
  5. Step 5: Solve for x
    x = 947,280,046.79/35,479.90
  6. Step 6: Final answer
    x = 26,699.06

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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.