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Finding the Fourth Proportional to 5,263.32, 7,263.72 and 2,905.46

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Solution

The fourth proportional to 5,263.32, 7,263.72 and 2,905.46 is: 4,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,263.32 : 7,263.72 = 2,905.46 : x
  2. Step 2: Convert to fraction form
    5,263.32/7,263.72 = 2,905.46/x
  3. Step 3: Cross multiply
    5,263.32x = 7,263.72 × 2,905.46
  4. Step 4: Simplify right side
    5,263.32x = 21,104,447.91
  5. Step 5: Solve for x
    x = 21,104,447.91/5,263.32
  6. Step 6: Final answer
    x = 4,009.72

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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.