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Finding the Fourth Proportional to 55,659.99, 76,807.94 and 30,504.63

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Solution

The fourth proportional to 55,659.99, 76,807.94 and 30,504.63 is: 42,094.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,659.99 : 76,807.94 = 30,504.63 : x
  2. Step 2: Convert to fraction form
    55,659.99/76,807.94 = 30,504.63/x
  3. Step 3: Cross multiply
    55,659.99x = 76,807.94 × 30,504.63
  4. Step 4: Simplify right side
    55,659.99x = 2,342,997,638.24
  5. Step 5: Solve for x
    x = 2,342,997,638.24/55,659.99
  6. Step 6: Final answer
    x = 42,094.83

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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.