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Finding the Fourth Proportional to 70,384.18, 105,579.90 and 17,794.12

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Solution

The fourth proportional to 70,384.18, 105,579.90 and 17,794.12 is: 26,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,384.18 : 105,579.90 = 17,794.12 : x
  2. Step 2: Convert to fraction form
    70,384.18/105,579.90 = 17,794.12/x
  3. Step 3: Cross multiply
    70,384.18x = 105,579.90 × 17,794.12
  4. Step 4: Simplify right side
    70,384.18x = 1,878,701,410.19
  5. Step 5: Solve for x
    x = 1,878,701,410.19/70,384.18
  6. Step 6: Final answer
    x = 26,692.10

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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.