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Finding the Fourth Proportional to 44,339.65, 66,518.98 and 12,749.44

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Solution

The fourth proportional to 44,339.65, 66,518.98 and 12,749.44 is: 19,126.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,339.65 : 66,518.98 = 12,749.44 : x
  2. Step 2: Convert to fraction form
    44,339.65/66,518.98 = 12,749.44/x
  3. Step 3: Cross multiply
    44,339.65x = 66,518.98 × 12,749.44
  4. Step 4: Simplify right side
    44,339.65x = 848,079,411.78
  5. Step 5: Solve for x
    x = 848,079,411.78/44,339.65
  6. Step 6: Final answer
    x = 19,126.89

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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.