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Finding the Fourth Proportional to 71,376.40, 107,064.60 and 29,823.40

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Solution

The fourth proportional to 71,376.40, 107,064.60 and 29,823.40 is: 44,735.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,376.40 : 107,064.60 = 29,823.40 : x
  2. Step 2: Convert to fraction form
    71,376.40/107,064.60 = 29,823.40/x
  3. Step 3: Cross multiply
    71,376.40x = 107,064.60 × 29,823.40
  4. Step 4: Simplify right side
    71,376.40x = 3,193,030,391.64
  5. Step 5: Solve for x
    x = 3,193,030,391.64/71,376.40
  6. Step 6: Final answer
    x = 44,735.10

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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.