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Finding the Fourth Proportional to 13,312.71, 19,969.08 and 6,293.43

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Solution

The fourth proportional to 13,312.71, 19,969.08 and 6,293.43 is: 9,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.71 : 19,969.08 = 6,293.43 : x
  2. Step 2: Convert to fraction form
    13,312.71/19,969.08 = 6,293.43/x
  3. Step 3: Cross multiply
    13,312.71x = 19,969.08 × 6,293.43
  4. Step 4: Simplify right side
    13,312.71x = 125,674,007.14
  5. Step 5: Solve for x
    x = 125,674,007.14/13,312.71
  6. Step 6: Final answer
    x = 9,440.15

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1.5x scale

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.