Home / 66,693.20-92,039.56-38,408.00

Finding the Fourth Proportional to 66,693.20, 92,039.56 and 38,408.00

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Solution

The fourth proportional to 66,693.20, 92,039.56 and 38,408.00 is: 53,004.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,693.20 : 92,039.56 = 38,408.00 : x
  2. Step 2: Convert to fraction form
    66,693.20/92,039.56 = 38,408.00/x
  3. Step 3: Cross multiply
    66,693.20x = 92,039.56 × 38,408.00
  4. Step 4: Simplify right side
    66,693.20x = 3,535,054,864.26
  5. Step 5: Solve for x
    x = 3,535,054,864.26/66,693.20
  6. Step 6: Final answer
    x = 53,004.73

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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.