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Finding the Fourth Proportional to 8,048.34, 12,070.08 and 2,853

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Solution

The fourth proportional to 8,048.34, 12,070.08 and 2,853 is: 4,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,048.34 : 12,070.08 = 2,853 : x
  2. Step 2: Convert to fraction form
    8,048.34/12,070.08 = 2,853/x
  3. Step 3: Cross multiply
    8,048.34x = 12,070.08 × 2,853
  4. Step 4: Simplify right side
    8,048.34x = 34,435,938.24
  5. Step 5: Solve for x
    x = 34,435,938.24/8,048.34
  6. Step 6: Final answer
    x = 4,278.64

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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.