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Finding the Fourth Proportional to 4,809.60, 6,635.60 and 3,133.32

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Solution

The fourth proportional to 4,809.60, 6,635.60 and 3,133.32 is: 4,322.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.60 : 6,635.60 = 3,133.32 : x
  2. Step 2: Convert to fraction form
    4,809.60/6,635.60 = 3,133.32/x
  3. Step 3: Cross multiply
    4,809.60x = 6,635.60 × 3,133.32
  4. Step 4: Simplify right side
    4,809.60x = 20,791,458.19
  5. Step 5: Solve for x
    x = 20,791,458.19/4,809.60
  6. Step 6: Final answer
    x = 4,322.91

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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.