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Finding the Fourth Proportional to 5,292.60, 7,929.30 and 4,313.40

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Solution

The fourth proportional to 5,292.60, 7,929.30 and 4,313.40 is: 6,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.60 : 7,929.30 = 4,313.40 : x
  2. Step 2: Convert to fraction form
    5,292.60/7,929.30 = 4,313.40/x
  3. Step 3: Cross multiply
    5,292.60x = 7,929.30 × 4,313.40
  4. Step 4: Simplify right side
    5,292.60x = 34,202,242.62
  5. Step 5: Solve for x
    x = 34,202,242.62/5,292.60
  6. Step 6: Final answer
    x = 6,462.28

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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.