Home / 66,538.80-91,827-38,247.12

Finding the Fourth Proportional to 66,538.80, 91,827 and 38,247.12

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Solution

The fourth proportional to 66,538.80, 91,827 and 38,247.12 is: 52,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,538.80 : 91,827 = 38,247.12 : x
  2. Step 2: Convert to fraction form
    66,538.80/91,827 = 38,247.12/x
  3. Step 3: Cross multiply
    66,538.80x = 91,827 × 38,247.12
  4. Step 4: Simplify right side
    66,538.80x = 3,512,118,288.24
  5. Step 5: Solve for x
    x = 3,512,118,288.24/66,538.80
  6. Step 6: Final answer
    x = 52,783.01

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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.