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Finding the Fourth Proportional to 48,330.64, 66,734.04 and 31,342.96

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Solution

The fourth proportional to 48,330.64, 66,734.04 and 31,342.96 is: 43,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,330.64 : 66,734.04 = 31,342.96 : x
  2. Step 2: Convert to fraction form
    48,330.64/66,734.04 = 31,342.96/x
  3. Step 3: Cross multiply
    48,330.64x = 66,734.04 × 31,342.96
  4. Step 4: Simplify right side
    48,330.64x = 2,091,642,346.36
  5. Step 5: Solve for x
    x = 2,091,642,346.36/48,330.64
  6. Step 6: Final answer
    x = 43,277.77

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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.