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Finding the Fourth Proportional to 48,636.30, 72,792.45 and 35,271.30

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Solution

The fourth proportional to 48,636.30, 72,792.45 and 35,271.30 is: 52,789.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,636.30 : 72,792.45 = 35,271.30 : x
  2. Step 2: Convert to fraction form
    48,636.30/72,792.45 = 35,271.30/x
  3. Step 3: Cross multiply
    48,636.30x = 72,792.45 × 35,271.30
  4. Step 4: Simplify right side
    48,636.30x = 2,567,484,341.69
  5. Step 5: Solve for x
    x = 2,567,484,341.69/48,636.30
  6. Step 6: Final answer
    x = 52,789.47

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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.