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Finding the Fourth Proportional to 5,910.30, 8,865.45 and 4,970.70

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Solution

The fourth proportional to 5,910.30, 8,865.45 and 4,970.70 is: 7,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.30 : 8,865.45 = 4,970.70 : x
  2. Step 2: Convert to fraction form
    5,910.30/8,865.45 = 4,970.70/x
  3. Step 3: Cross multiply
    5,910.30x = 8,865.45 × 4,970.70
  4. Step 4: Simplify right side
    5,910.30x = 44,067,492.32
  5. Step 5: Solve for x
    x = 44,067,492.32/5,910.30
  6. Step 6: Final answer
    x = 7,456.05

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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.