Home / 66,620.16-91,956.33-38,344.68

Finding the Fourth Proportional to 66,620.16, 91,956.33 and 38,344.68

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Solution

The fourth proportional to 66,620.16, 91,956.33 and 38,344.68 is: 52,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,620.16 : 91,956.33 = 38,344.68 : x
  2. Step 2: Convert to fraction form
    66,620.16/91,956.33 = 38,344.68/x
  3. Step 3: Cross multiply
    66,620.16x = 91,956.33 × 38,344.68
  4. Step 4: Simplify right side
    66,620.16x = 3,526,036,047.82
  5. Step 5: Solve for x
    x = 3,526,036,047.82/66,620.16
  6. Step 6: Final answer
    x = 52,927.46

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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.