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Finding the Fourth Proportional to 18,706.53, 25,816.28 and 10,751.93

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Solution

The fourth proportional to 18,706.53, 25,816.28 and 10,751.93 is: 14,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.53 : 25,816.28 = 10,751.93 : x
  2. Step 2: Convert to fraction form
    18,706.53/25,816.28 = 10,751.93/x
  3. Step 3: Cross multiply
    18,706.53x = 25,816.28 × 10,751.93
  4. Step 4: Simplify right side
    18,706.53x = 277,574,652.58
  5. Step 5: Solve for x
    x = 277,574,652.58/18,706.53
  6. Step 6: Final answer
    x = 14,838.38

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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.