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Finding the Fourth Proportional to 14,012.94, 19,337.07 and 8,707.71

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Solution

The fourth proportional to 14,012.94, 19,337.07 and 8,707.71 is: 12,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.94 : 19,337.07 = 8,707.71 : x
  2. Step 2: Convert to fraction form
    14,012.94/19,337.07 = 8,707.71/x
  3. Step 3: Cross multiply
    14,012.94x = 19,337.07 × 8,707.71
  4. Step 4: Simplify right side
    14,012.94x = 168,381,597.81
  5. Step 5: Solve for x
    x = 168,381,597.81/14,012.94
  6. Step 6: Final answer
    x = 12,016.15

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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.