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Finding the Fourth Proportional to 65,975.66, 91,058.60 and 37,681.35

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Solution

The fourth proportional to 65,975.66, 91,058.60 and 37,681.35 is: 52,007.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,975.66 : 91,058.60 = 37,681.35 : x
  2. Step 2: Convert to fraction form
    65,975.66/91,058.60 = 37,681.35/x
  3. Step 3: Cross multiply
    65,975.66x = 91,058.60 × 37,681.35
  4. Step 4: Simplify right side
    65,975.66x = 3,431,211,071.31
  5. Step 5: Solve for x
    x = 3,431,211,071.31/65,975.66
  6. Step 6: Final answer
    x = 52,007.22

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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.