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Finding the Fourth Proportional to 7,159.37, 9,877.02 and 4,469

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Solution

The fourth proportional to 7,159.37, 9,877.02 and 4,469 is: 6,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.37 : 9,877.02 = 4,469 : x
  2. Step 2: Convert to fraction form
    7,159.37/9,877.02 = 4,469/x
  3. Step 3: Cross multiply
    7,159.37x = 9,877.02 × 4,469
  4. Step 4: Simplify right side
    7,159.37x = 44,140,402.38
  5. Step 5: Solve for x
    x = 44,140,402.38/7,159.37
  6. Step 6: Final answer
    x = 6,165.40

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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.