Home / 66,913.96-92,338.14-38,628.76

Finding the Fourth Proportional to 66,913.96, 92,338.14 and 38,628.76

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Solution

The fourth proportional to 66,913.96, 92,338.14 and 38,628.76 is: 53,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,913.96 : 92,338.14 = 38,628.76 : x
  2. Step 2: Convert to fraction form
    66,913.96/92,338.14 = 38,628.76/x
  3. Step 3: Cross multiply
    66,913.96x = 92,338.14 × 38,628.76
  4. Step 4: Simplify right side
    66,913.96x = 3,566,907,848.91
  5. Step 5: Solve for x
    x = 3,566,907,848.91/66,913.96
  6. Step 6: Final answer
    x = 53,305.88

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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.