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Finding the Fourth Proportional to 66,358.80, 91,593.96 and 43,714.32

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Solution

The fourth proportional to 66,358.80, 91,593.96 and 43,714.32 is: 60,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,358.80 : 91,593.96 = 43,714.32 : x
  2. Step 2: Convert to fraction form
    66,358.80/91,593.96 = 43,714.32/x
  3. Step 3: Cross multiply
    66,358.80x = 91,593.96 × 43,714.32
  4. Step 4: Simplify right side
    66,358.80x = 4,003,967,677.51
  5. Step 5: Solve for x
    x = 4,003,967,677.51/66,358.80
  6. Step 6: Final answer
    x = 60,338.16

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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.