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Finding the Fourth Proportional to 66,606.48, 91,821.60 and 41,095.80

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Solution

The fourth proportional to 66,606.48, 91,821.60 and 41,095.80 is: 56,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,606.48 : 91,821.60 = 41,095.80 : x
  2. Step 2: Convert to fraction form
    66,606.48/91,821.60 = 41,095.80/x
  3. Step 3: Cross multiply
    66,606.48x = 91,821.60 × 41,095.80
  4. Step 4: Simplify right side
    66,606.48x = 3,773,482,109.28
  5. Step 5: Solve for x
    x = 3,773,482,109.28/66,606.48
  6. Step 6: Final answer
    x = 56,653.38

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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.