Home / 66,905.52-92,333.70-38,613.03

Finding the Fourth Proportional to 66,905.52, 92,333.70 and 38,613.03

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Solution

The fourth proportional to 66,905.52, 92,333.70 and 38,613.03 is: 53,288.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,905.52 : 92,333.70 = 38,613.03 : x
  2. Step 2: Convert to fraction form
    66,905.52/92,333.70 = 38,613.03/x
  3. Step 3: Cross multiply
    66,905.52x = 92,333.70 × 38,613.03
  4. Step 4: Simplify right side
    66,905.52x = 3,565,283,928.11
  5. Step 5: Solve for x
    x = 3,565,283,928.11/66,905.52
  6. Step 6: Final answer
    x = 53,288.34

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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.