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Finding the Fourth Proportional to 64,566.64, 89,108.82 and 39,086.92

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Solution

The fourth proportional to 64,566.64, 89,108.82 and 39,086.92 is: 53,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,566.64 : 89,108.82 = 39,086.92 : x
  2. Step 2: Convert to fraction form
    64,566.64/89,108.82 = 39,086.92/x
  3. Step 3: Cross multiply
    64,566.64x = 89,108.82 × 39,086.92
  4. Step 4: Simplify right side
    64,566.64x = 3,482,989,318.63
  5. Step 5: Solve for x
    x = 3,482,989,318.63/64,566.64
  6. Step 6: Final answer
    x = 53,944.10

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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.