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Finding the Fourth Proportional to 7,799.63, 10,763.70 and 4,657.64

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Solution

The fourth proportional to 7,799.63, 10,763.70 and 4,657.64 is: 6,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.63 : 10,763.70 = 4,657.64 : x
  2. Step 2: Convert to fraction form
    7,799.63/10,763.70 = 4,657.64/x
  3. Step 3: Cross multiply
    7,799.63x = 10,763.70 × 4,657.64
  4. Step 4: Simplify right side
    7,799.63x = 50,133,439.67
  5. Step 5: Solve for x
    x = 50,133,439.67/7,799.63
  6. Step 6: Final answer
    x = 6,427.67

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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.