Home / 66,570.18-91,867.47-37,888.43

Finding the Fourth Proportional to 66,570.18, 91,867.47 and 37,888.43

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Solution

The fourth proportional to 66,570.18, 91,867.47 and 37,888.43 is: 52,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570.18 : 91,867.47 = 37,888.43 : x
  2. Step 2: Convert to fraction form
    66,570.18/91,867.47 = 37,888.43/x
  3. Step 3: Cross multiply
    66,570.18x = 91,867.47 × 37,888.43
  4. Step 4: Simplify right side
    66,570.18x = 3,480,714,436.04
  5. Step 5: Solve for x
    x = 3,480,714,436.04/66,570.18
  6. Step 6: Final answer
    x = 52,286.39

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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.