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Finding the Fourth Proportional to 34,749.79, 52,128.51 and 11,051.79

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Solution

The fourth proportional to 34,749.79, 52,128.51 and 11,051.79 is: 16,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,749.79 : 52,128.51 = 11,051.79 : x
  2. Step 2: Convert to fraction form
    34,749.79/52,128.51 = 11,051.79/x
  3. Step 3: Cross multiply
    34,749.79x = 52,128.51 × 11,051.79
  4. Step 4: Simplify right side
    34,749.79x = 576,113,345.53
  5. Step 5: Solve for x
    x = 576,113,345.53/34,749.79
  6. Step 6: Final answer
    x = 16,578.90

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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.