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Finding the Fourth Proportional to 66,225.35, 91,390.35 and 36,010.69

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Solution

The fourth proportional to 66,225.35, 91,390.35 and 36,010.69 is: 49,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,225.35 : 91,390.35 = 36,010.69 : x
  2. Step 2: Convert to fraction form
    66,225.35/91,390.35 = 36,010.69/x
  3. Step 3: Cross multiply
    66,225.35x = 91,390.35 × 36,010.69
  4. Step 4: Simplify right side
    66,225.35x = 3,291,029,562.84
  5. Step 5: Solve for x
    x = 3,291,029,562.84/66,225.35
  6. Step 6: Final answer
    x = 49,694.41

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.