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Finding the Fourth Proportional to 61,975.91, 85,527.42 and 33,681.60

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Solution

The fourth proportional to 61,975.91, 85,527.42 and 33,681.60 is: 46,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,975.91 : 85,527.42 = 33,681.60 : x
  2. Step 2: Convert to fraction form
    61,975.91/85,527.42 = 33,681.60/x
  3. Step 3: Cross multiply
    61,975.91x = 85,527.42 × 33,681.60
  4. Step 4: Simplify right side
    61,975.91x = 2,880,700,349.47
  5. Step 5: Solve for x
    x = 2,880,700,349.47/61,975.91
  6. Step 6: Final answer
    x = 46,480.97

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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.