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Finding the Fourth Proportional to 5,752.60, 8,612.10 and 4,298.20

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Solution

The fourth proportional to 5,752.60, 8,612.10 and 4,298.20 is: 6,434.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,752.60 : 8,612.10 = 4,298.20 : x
  2. Step 2: Convert to fraction form
    5,752.60/8,612.10 = 4,298.20/x
  3. Step 3: Cross multiply
    5,752.60x = 8,612.10 × 4,298.20
  4. Step 4: Simplify right side
    5,752.60x = 37,016,528.22
  5. Step 5: Solve for x
    x = 37,016,528.22/5,752.60
  6. Step 6: Final answer
    x = 6,434.75

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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.