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Finding the Fourth Proportional to 61,143.32, 91,636.02 and 27,384.67

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Solution

The fourth proportional to 61,143.32, 91,636.02 and 27,384.67 is: 41,041.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,143.32 : 91,636.02 = 27,384.67 : x
  2. Step 2: Convert to fraction form
    61,143.32/91,636.02 = 27,384.67/x
  3. Step 3: Cross multiply
    61,143.32x = 91,636.02 × 27,384.67
  4. Step 4: Simplify right side
    61,143.32x = 2,509,421,938.72
  5. Step 5: Solve for x
    x = 2,509,421,938.72/61,143.32
  6. Step 6: Final answer
    x = 41,041.64

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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.