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Finding the Fourth Proportional to 47,963.86, 66,278.13 and 45,659.32

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Solution

The fourth proportional to 47,963.86, 66,278.13 and 45,659.32 is: 63,093.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,963.86 : 66,278.13 = 45,659.32 : x
  2. Step 2: Convert to fraction form
    47,963.86/66,278.13 = 45,659.32/x
  3. Step 3: Cross multiply
    47,963.86x = 66,278.13 × 45,659.32
  4. Step 4: Simplify right side
    47,963.86x = 3,026,214,346.67
  5. Step 5: Solve for x
    x = 3,026,214,346.67/47,963.86
  6. Step 6: Final answer
    x = 63,093.64

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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.