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Finding the Fourth Proportional to 70,653.62, 105,980.45 and 26,274.58

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Solution

The fourth proportional to 70,653.62, 105,980.45 and 26,274.58 is: 39,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,653.62 : 105,980.45 = 26,274.58 : x
  2. Step 2: Convert to fraction form
    70,653.62/105,980.45 = 26,274.58/x
  3. Step 3: Cross multiply
    70,653.62x = 105,980.45 × 26,274.58
  4. Step 4: Simplify right side
    70,653.62x = 2,784,591,563.43
  5. Step 5: Solve for x
    x = 2,784,591,563.43/70,653.62
  6. Step 6: Final answer
    x = 39,411.88

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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.