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Finding the Fourth Proportional to 29,279.56, 43,920.56 and 8,503.06

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Solution

The fourth proportional to 29,279.56, 43,920.56 and 8,503.06 is: 12,754.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,279.56 : 43,920.56 = 8,503.06 : x
  2. Step 2: Convert to fraction form
    29,279.56/43,920.56 = 8,503.06/x
  3. Step 3: Cross multiply
    29,279.56x = 43,920.56 × 8,503.06
  4. Step 4: Simplify right side
    29,279.56x = 373,459,156.91
  5. Step 5: Solve for x
    x = 373,459,156.91/29,279.56
  6. Step 6: Final answer
    x = 12,754.94

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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.