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Finding the Fourth Proportional to 34,907.97, 48,172.98 and 18,992.40

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Solution

The fourth proportional to 34,907.97, 48,172.98 and 18,992.40 is: 26,209.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,907.97 : 48,172.98 = 18,992.40 : x
  2. Step 2: Convert to fraction form
    34,907.97/48,172.98 = 18,992.40/x
  3. Step 3: Cross multiply
    34,907.97x = 48,172.98 × 18,992.40
  4. Step 4: Simplify right side
    34,907.97x = 914,920,505.35
  5. Step 5: Solve for x
    x = 914,920,505.35/34,907.97
  6. Step 6: Final answer
    x = 26,209.50

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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.