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Finding the Fourth Proportional to 5,308.20, 7,328.88 and 4,746.88

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Solution

The fourth proportional to 5,308.20, 7,328.88 and 4,746.88 is: 6,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.20 : 7,328.88 = 4,746.88 : x
  2. Step 2: Convert to fraction form
    5,308.20/7,328.88 = 4,746.88/x
  3. Step 3: Cross multiply
    5,308.20x = 7,328.88 × 4,746.88
  4. Step 4: Simplify right side
    5,308.20x = 34,789,313.89
  5. Step 5: Solve for x
    x = 34,789,313.89/5,308.20
  6. Step 6: Final answer
    x = 6,553.88

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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.