Home / 66,599.06-91,906.90-38,302.88

Finding the Fourth Proportional to 66,599.06, 91,906.90 and 38,302.88

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Solution

The fourth proportional to 66,599.06, 91,906.90 and 38,302.88 is: 52,858.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,599.06 : 91,906.90 = 38,302.88 : x
  2. Step 2: Convert to fraction form
    66,599.06/91,906.90 = 38,302.88/x
  3. Step 3: Cross multiply
    66,599.06x = 91,906.90 × 38,302.88
  4. Step 4: Simplify right side
    66,599.06x = 3,520,298,406.58
  5. Step 5: Solve for x
    x = 3,520,298,406.58/66,599.06
  6. Step 6: Final answer
    x = 52,858.08

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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.