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Finding the Fourth Proportional to 5,599.44, 7,719.12 and 4,418.40

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Solution

The fourth proportional to 5,599.44, 7,719.12 and 4,418.40 is: 6,090.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,599.44 : 7,719.12 = 4,418.40 : x
  2. Step 2: Convert to fraction form
    5,599.44/7,719.12 = 4,418.40/x
  3. Step 3: Cross multiply
    5,599.44x = 7,719.12 × 4,418.40
  4. Step 4: Simplify right side
    5,599.44x = 34,106,159.81
  5. Step 5: Solve for x
    x = 34,106,159.81/5,599.44
  6. Step 6: Final answer
    x = 6,090.99

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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.