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Finding the Fourth Proportional to 70,515.87, 105,699.51 and 23,118.60

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Solution

The fourth proportional to 70,515.87, 105,699.51 and 23,118.60 is: 34,653.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.87 : 105,699.51 = 23,118.60 : x
  2. Step 2: Convert to fraction form
    70,515.87/105,699.51 = 23,118.60/x
  3. Step 3: Cross multiply
    70,515.87x = 105,699.51 × 23,118.60
  4. Step 4: Simplify right side
    70,515.87x = 2,443,624,691.89
  5. Step 5: Solve for x
    x = 2,443,624,691.89/70,515.87
  6. Step 6: Final answer
    x = 34,653.54

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1.5x scale

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.