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Finding the Fourth Proportional to 53,200.67, 79,812.66 and 15,763.68

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Solution

The fourth proportional to 53,200.67, 79,812.66 and 15,763.68 is: 23,648.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,200.67 : 79,812.66 = 15,763.68 : x
  2. Step 2: Convert to fraction form
    53,200.67/79,812.66 = 15,763.68/x
  3. Step 3: Cross multiply
    53,200.67x = 79,812.66 × 15,763.68
  4. Step 4: Simplify right side
    53,200.67x = 1,258,141,232.19
  5. Step 5: Solve for x
    x = 1,258,141,232.19/53,200.67
  6. Step 6: Final answer
    x = 23,648.98

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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.