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Finding the Fourth Proportional to 14,718.80, 20,304.80 and 8,746.24

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Solution

The fourth proportional to 14,718.80, 20,304.80 and 8,746.24 is: 12,065.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.80 : 20,304.80 = 8,746.24 : x
  2. Step 2: Convert to fraction form
    14,718.80/20,304.80 = 8,746.24/x
  3. Step 3: Cross multiply
    14,718.80x = 20,304.80 × 8,746.24
  4. Step 4: Simplify right side
    14,718.80x = 177,590,653.95
  5. Step 5: Solve for x
    x = 177,590,653.95/14,718.80
  6. Step 6: Final answer
    x = 12,065.57

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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.