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Finding the Fourth Proportional to 35,397.54, 53,129.12 and 17,879.67

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Solution

The fourth proportional to 35,397.54, 53,129.12 and 17,879.67 is: 26,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,397.54 : 53,129.12 = 17,879.67 : x
  2. Step 2: Convert to fraction form
    35,397.54/53,129.12 = 17,879.67/x
  3. Step 3: Cross multiply
    35,397.54x = 53,129.12 × 17,879.67
  4. Step 4: Simplify right side
    35,397.54x = 949,931,043.59
  5. Step 5: Solve for x
    x = 949,931,043.59/35,397.54
  6. Step 6: Final answer
    x = 26,836.08

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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.