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Finding the Fourth Proportional to 64,570.37, 89,106.45 and 36,971.37

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Solution

The fourth proportional to 64,570.37, 89,106.45 and 36,971.37 is: 51,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,570.37 : 89,106.45 = 36,971.37 : x
  2. Step 2: Convert to fraction form
    64,570.37/89,106.45 = 36,971.37/x
  3. Step 3: Cross multiply
    64,570.37x = 89,106.45 × 36,971.37
  4. Step 4: Simplify right side
    64,570.37x = 3,294,387,662.67
  5. Step 5: Solve for x
    x = 3,294,387,662.67/64,570.37
  6. Step 6: Final answer
    x = 51,020.11

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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.