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Finding the Fourth Proportional to 55,595.52, 76,730.76 and 31,723.20

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Solution

The fourth proportional to 55,595.52, 76,730.76 and 31,723.20 is: 43,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,595.52 : 76,730.76 = 31,723.20 : x
  2. Step 2: Convert to fraction form
    55,595.52/76,730.76 = 31,723.20/x
  3. Step 3: Cross multiply
    55,595.52x = 76,730.76 × 31,723.20
  4. Step 4: Simplify right side
    55,595.52x = 2,434,145,245.63
  5. Step 5: Solve for x
    x = 2,434,145,245.63/55,595.52
  6. Step 6: Final answer
    x = 43,783.12

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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.