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Finding the Fourth Proportional to 64,821.64, 89,473.64 and 37,604.60

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Solution

The fourth proportional to 64,821.64, 89,473.64 and 37,604.60 is: 51,905.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,821.64 : 89,473.64 = 37,604.60 : x
  2. Step 2: Convert to fraction form
    64,821.64/89,473.64 = 37,604.60/x
  3. Step 3: Cross multiply
    64,821.64x = 89,473.64 × 37,604.60
  4. Step 4: Simplify right side
    64,821.64x = 3,364,620,442.74
  5. Step 5: Solve for x
    x = 3,364,620,442.74/64,821.64
  6. Step 6: Final answer
    x = 51,905.82

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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.