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Finding the Fourth Proportional to 8,730.53, 12,047.45 and 4,751.55

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Solution

The fourth proportional to 8,730.53, 12,047.45 and 4,751.55 is: 6,556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.53 : 12,047.45 = 4,751.55 : x
  2. Step 2: Convert to fraction form
    8,730.53/12,047.45 = 4,751.55/x
  3. Step 3: Cross multiply
    8,730.53x = 12,047.45 × 4,751.55
  4. Step 4: Simplify right side
    8,730.53x = 57,244,072.93
  5. Step 5: Solve for x
    x = 57,244,072.93/8,730.53
  6. Step 6: Final answer
    x = 6,556.77

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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.