Home / 66,653.06-91,989.86-37,983.08

Finding the Fourth Proportional to 66,653.06, 91,989.86 and 37,983.08

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Solution

The fourth proportional to 66,653.06, 91,989.86 and 37,983.08 is: 52,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.06 : 91,989.86 = 37,983.08 : x
  2. Step 2: Convert to fraction form
    66,653.06/91,989.86 = 37,983.08/x
  3. Step 3: Cross multiply
    66,653.06x = 91,989.86 × 37,983.08
  4. Step 4: Simplify right side
    66,653.06x = 3,494,058,251.63
  5. Step 5: Solve for x
    x = 3,494,058,251.63/66,653.06
  6. Step 6: Final answer
    x = 52,421.58

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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.