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Finding the Fourth Proportional to 12,331.50, 17,019.14 and 6,955.04

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Solution

The fourth proportional to 12,331.50, 17,019.14 and 6,955.04 is: 9,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.50 : 17,019.14 = 6,955.04 : x
  2. Step 2: Convert to fraction form
    12,331.50/17,019.14 = 6,955.04/x
  3. Step 3: Cross multiply
    12,331.50x = 17,019.14 × 6,955.04
  4. Step 4: Simplify right side
    12,331.50x = 118,368,782.08
  5. Step 5: Solve for x
    x = 118,368,782.08/12,331.50
  6. Step 6: Final answer
    x = 9,598.90

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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.