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Finding the Fourth Proportional to 63,515.91, 87,655.46 and 35,220.99

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Solution

The fourth proportional to 63,515.91, 87,655.46 and 35,220.99 is: 48,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,515.91 : 87,655.46 = 35,220.99 : x
  2. Step 2: Convert to fraction form
    63,515.91/87,655.46 = 35,220.99/x
  3. Step 3: Cross multiply
    63,515.91x = 87,655.46 × 35,220.99
  4. Step 4: Simplify right side
    63,515.91x = 3,087,311,904.00
  5. Step 5: Solve for x
    x = 3,087,311,904.00/63,515.91
  6. Step 6: Final answer
    x = 48,606.91

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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.