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Finding the Fourth Proportional to 12,430.97, 17,154.74 and 6,841.97

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Solution

The fourth proportional to 12,430.97, 17,154.74 and 6,841.97 is: 9,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.97 : 17,154.74 = 6,841.97 : x
  2. Step 2: Convert to fraction form
    12,430.97/17,154.74 = 6,841.97/x
  3. Step 3: Cross multiply
    12,430.97x = 17,154.74 × 6,841.97
  4. Step 4: Simplify right side
    12,430.97x = 117,372,173.61
  5. Step 5: Solve for x
    x = 117,372,173.61/12,430.97
  6. Step 6: Final answer
    x = 9,441.92

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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.