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Finding the Fourth Proportional to 62,311.91, 85,995.34 and 35,455.55

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Solution

The fourth proportional to 62,311.91, 85,995.34 and 35,455.55 is: 48,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,311.91 : 85,995.34 = 35,455.55 : x
  2. Step 2: Convert to fraction form
    62,311.91/85,995.34 = 35,455.55/x
  3. Step 3: Cross multiply
    62,311.91x = 85,995.34 × 35,455.55
  4. Step 4: Simplify right side
    62,311.91x = 3,049,011,558.52
  5. Step 5: Solve for x
    x = 3,049,011,558.52/62,311.91
  6. Step 6: Final answer
    x = 48,931.45

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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.