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Finding the Fourth Proportional to 64,809.05, 89,436.09 and 37,946.16

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Solution

The fourth proportional to 64,809.05, 89,436.09 and 37,946.16 is: 52,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,809.05 : 89,436.09 = 37,946.16 : x
  2. Step 2: Convert to fraction form
    64,809.05/89,436.09 = 37,946.16/x
  3. Step 3: Cross multiply
    64,809.05x = 89,436.09 × 37,946.16
  4. Step 4: Simplify right side
    64,809.05x = 3,393,756,180.91
  5. Step 5: Solve for x
    x = 3,393,756,180.91/64,809.05
  6. Step 6: Final answer
    x = 52,365.47

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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.