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Finding the Fourth Proportional to 7,024.44, 9,688.26 and 4,979.40

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Solution

The fourth proportional to 7,024.44, 9,688.26 and 4,979.40 is: 6,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,024.44 : 9,688.26 = 4,979.40 : x
  2. Step 2: Convert to fraction form
    7,024.44/9,688.26 = 4,979.40/x
  3. Step 3: Cross multiply
    7,024.44x = 9,688.26 × 4,979.40
  4. Step 4: Simplify right side
    7,024.44x = 48,241,721.84
  5. Step 5: Solve for x
    x = 48,241,721.84/7,024.44
  6. Step 6: Final answer
    x = 6,867.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.