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Finding the Fourth Proportional to 66,712.32, 100,068.48 and 26,749.44

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Solution

The fourth proportional to 66,712.32, 100,068.48 and 26,749.44 is: 40,124.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,712.32 : 100,068.48 = 26,749.44 : x
  2. Step 2: Convert to fraction form
    66,712.32/100,068.48 = 26,749.44/x
  3. Step 3: Cross multiply
    66,712.32x = 100,068.48 × 26,749.44
  4. Step 4: Simplify right side
    66,712.32x = 2,676,775,801.65
  5. Step 5: Solve for x
    x = 2,676,775,801.65/66,712.32
  6. Step 6: Final answer
    x = 40,124.16

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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.