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Finding the Fourth Proportional to 12,346.88, 17,038.26 and 7,043.39

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Solution

The fourth proportional to 12,346.88, 17,038.26 and 7,043.39 is: 9,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.88 : 17,038.26 = 7,043.39 : x
  2. Step 2: Convert to fraction form
    12,346.88/17,038.26 = 7,043.39/x
  3. Step 3: Cross multiply
    12,346.88x = 17,038.26 × 7,043.39
  4. Step 4: Simplify right side
    12,346.88x = 120,007,110.10
  5. Step 5: Solve for x
    x = 120,007,110.10/12,346.88
  6. Step 6: Final answer
    x = 9,719.63

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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.