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Finding the Fourth Proportional to 4,705.70, 7,058.55 and 4,079.30

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Solution

The fourth proportional to 4,705.70, 7,058.55 and 4,079.30 is: 6,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,705.70 : 7,058.55 = 4,079.30 : x
  2. Step 2: Convert to fraction form
    4,705.70/7,058.55 = 4,079.30/x
  3. Step 3: Cross multiply
    4,705.70x = 7,058.55 × 4,079.30
  4. Step 4: Simplify right side
    4,705.70x = 28,793,943.02
  5. Step 5: Solve for x
    x = 28,793,943.02/4,705.70
  6. Step 6: Final answer
    x = 6,118.95

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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.