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Finding the Fourth Proportional to 55,995.78, 84,030.58 and 20,935.44

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Solution

The fourth proportional to 55,995.78, 84,030.58 and 20,935.44 is: 31,416.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,995.78 : 84,030.58 = 20,935.44 : x
  2. Step 2: Convert to fraction form
    55,995.78/84,030.58 = 20,935.44/x
  3. Step 3: Cross multiply
    55,995.78x = 84,030.58 × 20,935.44
  4. Step 4: Simplify right side
    55,995.78x = 1,759,217,165.76
  5. Step 5: Solve for x
    x = 1,759,217,165.76/55,995.78
  6. Step 6: Final answer
    x = 31,416.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.