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Finding the Fourth Proportional to 14,479.94, 19,982.76 and 8,510.51

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Solution

The fourth proportional to 14,479.94, 19,982.76 and 8,510.51 is: 11,744.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.94 : 19,982.76 = 8,510.51 : x
  2. Step 2: Convert to fraction form
    14,479.94/19,982.76 = 8,510.51/x
  3. Step 3: Cross multiply
    14,479.94x = 19,982.76 × 8,510.51
  4. Step 4: Simplify right side
    14,479.94x = 170,063,478.81
  5. Step 5: Solve for x
    x = 170,063,478.81/14,479.94
  6. Step 6: Final answer
    x = 11,744.76

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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.