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Finding the Fourth Proportional to 66,009.70, 99,029.13 and 32,747.86

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Solution

The fourth proportional to 66,009.70, 99,029.13 and 32,747.86 is: 49,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,009.70 : 99,029.13 = 32,747.86 : x
  2. Step 2: Convert to fraction form
    66,009.70/99,029.13 = 32,747.86/x
  3. Step 3: Cross multiply
    66,009.70x = 99,029.13 × 32,747.86
  4. Step 4: Simplify right side
    66,009.70x = 3,242,992,085.16
  5. Step 5: Solve for x
    x = 3,242,992,085.16/66,009.70
  6. Step 6: Final answer
    x = 49,129.02

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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.