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Finding the Fourth Proportional to 66,297.42, 91,493.01 and 38,008.44

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Solution

The fourth proportional to 66,297.42, 91,493.01 and 38,008.44 is: 52,453.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,297.42 : 91,493.01 = 38,008.44 : x
  2. Step 2: Convert to fraction form
    66,297.42/91,493.01 = 38,008.44/x
  3. Step 3: Cross multiply
    66,297.42x = 91,493.01 × 38,008.44
  4. Step 4: Simplify right side
    66,297.42x = 3,477,506,581.00
  5. Step 5: Solve for x
    x = 3,477,506,581.00/66,297.42
  6. Step 6: Final answer
    x = 52,453.12

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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.