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Finding the Fourth Proportional to 29,060.50, 43,590.75 and 7,172.50

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Solution

The fourth proportional to 29,060.50, 43,590.75 and 7,172.50 is: 10,758.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,060.50 : 43,590.75 = 7,172.50 : x
  2. Step 2: Convert to fraction form
    29,060.50/43,590.75 = 7,172.50/x
  3. Step 3: Cross multiply
    29,060.50x = 43,590.75 × 7,172.50
  4. Step 4: Simplify right side
    29,060.50x = 312,654,654.38
  5. Step 5: Solve for x
    x = 312,654,654.38/29,060.50
  6. Step 6: Final answer
    x = 10,758.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.