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Finding the Fourth Proportional to 28,501.10, 42,754.08 and 7,443.94

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Solution

The fourth proportional to 28,501.10, 42,754.08 and 7,443.94 is: 11,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.10 : 42,754.08 = 7,443.94 : x
  2. Step 2: Convert to fraction form
    28,501.10/42,754.08 = 7,443.94/x
  3. Step 3: Cross multiply
    28,501.10x = 42,754.08 × 7,443.94
  4. Step 4: Simplify right side
    28,501.10x = 318,258,806.28
  5. Step 5: Solve for x
    x = 318,258,806.28/28,501.10
  6. Step 6: Final answer
    x = 11,166.54

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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.