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Finding the Fourth Proportional to 70,038.46, 105,040.68 and 23,285.26

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Solution

The fourth proportional to 70,038.46, 105,040.68 and 23,285.26 is: 34,922.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,038.46 : 105,040.68 = 23,285.26 : x
  2. Step 2: Convert to fraction form
    70,038.46/105,040.68 = 23,285.26/x
  3. Step 3: Cross multiply
    70,038.46x = 105,040.68 × 23,285.26
  4. Step 4: Simplify right side
    70,038.46x = 2,445,899,544.38
  5. Step 5: Solve for x
    x = 2,445,899,544.38/70,038.46
  6. Step 6: Final answer
    x = 34,922.23

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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.