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Finding the Fourth Proportional to 70,689.58, 106,033.83 and 17,381.32

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Solution

The fourth proportional to 70,689.58, 106,033.83 and 17,381.32 is: 26,071.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,689.58 : 106,033.83 = 17,381.32 : x
  2. Step 2: Convert to fraction form
    70,689.58/106,033.83 = 17,381.32/x
  3. Step 3: Cross multiply
    70,689.58x = 106,033.83 × 17,381.32
  4. Step 4: Simplify right side
    70,689.58x = 1,843,007,599.79
  5. Step 5: Solve for x
    x = 1,843,007,599.79/70,689.58
  6. Step 6: Final answer
    x = 26,071.84

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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.