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Finding the Fourth Proportional to 64,574.48, 89,108.70 and 37,724.60

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Solution

The fourth proportional to 64,574.48, 89,108.70 and 37,724.60 is: 52,057.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,574.48 : 89,108.70 = 37,724.60 : x
  2. Step 2: Convert to fraction form
    64,574.48/89,108.70 = 37,724.60/x
  3. Step 3: Cross multiply
    64,574.48x = 89,108.70 × 37,724.60
  4. Step 4: Simplify right side
    64,574.48x = 3,361,590,064.02
  5. Step 5: Solve for x
    x = 3,361,590,064.02/64,574.48
  6. Step 6: Final answer
    x = 52,057.56

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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.