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Finding the Fourth Proportional to 7,800.54, 10,764.76 and 4,263.76

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Solution

The fourth proportional to 7,800.54, 10,764.76 and 4,263.76 is: 5,884.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.54 : 10,764.76 = 4,263.76 : x
  2. Step 2: Convert to fraction form
    7,800.54/10,764.76 = 4,263.76/x
  3. Step 3: Cross multiply
    7,800.54x = 10,764.76 × 4,263.76
  4. Step 4: Simplify right side
    7,800.54x = 45,898,353.10
  5. Step 5: Solve for x
    x = 45,898,353.10/7,800.54
  6. Step 6: Final answer
    x = 5,884.00

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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.