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Finding the Fourth Proportional to 4,718.95, 7,078 and 1,598.88

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Solution

The fourth proportional to 4,718.95, 7,078 and 1,598.88 is: 2,398.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.95 : 7,078 = 1,598.88 : x
  2. Step 2: Convert to fraction form
    4,718.95/7,078 = 1,598.88/x
  3. Step 3: Cross multiply
    4,718.95x = 7,078 × 1,598.88
  4. Step 4: Simplify right side
    4,718.95x = 11,316,872.64
  5. Step 5: Solve for x
    x = 11,316,872.64/4,718.95
  6. Step 6: Final answer
    x = 2,398.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.