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Finding the Fourth Proportional to 45,717.56, 63,088.24 and 28,739.24

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Solution

The fourth proportional to 45,717.56, 63,088.24 and 28,739.24 is: 39,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,717.56 : 63,088.24 = 28,739.24 : x
  2. Step 2: Convert to fraction form
    45,717.56/63,088.24 = 28,739.24/x
  3. Step 3: Cross multiply
    45,717.56x = 63,088.24 × 28,739.24
  4. Step 4: Simplify right side
    45,717.56x = 1,813,108,070.54
  5. Step 5: Solve for x
    x = 1,813,108,070.54/45,717.56
  6. Step 6: Final answer
    x = 39,658.90

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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.