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Finding the Fourth Proportional to 7,199.63, 9,935.99 and 4,055.81

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Solution

The fourth proportional to 7,199.63, 9,935.99 and 4,055.81 is: 5,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.63 : 9,935.99 = 4,055.81 : x
  2. Step 2: Convert to fraction form
    7,199.63/9,935.99 = 4,055.81/x
  3. Step 3: Cross multiply
    7,199.63x = 9,935.99 × 4,055.81
  4. Step 4: Simplify right side
    7,199.63x = 40,298,522.58
  5. Step 5: Solve for x
    x = 40,298,522.58/7,199.63
  6. Step 6: Final answer
    x = 5,597.31

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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.