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Finding the Fourth Proportional to 15,843.76, 23,765.64 and 4,751.64

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Solution

The fourth proportional to 15,843.76, 23,765.64 and 4,751.64 is: 7,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,843.76 : 23,765.64 = 4,751.64 : x
  2. Step 2: Convert to fraction form
    15,843.76/23,765.64 = 4,751.64/x
  3. Step 3: Cross multiply
    15,843.76x = 23,765.64 × 4,751.64
  4. Step 4: Simplify right side
    15,843.76x = 112,925,765.65
  5. Step 5: Solve for x
    x = 112,925,765.65/15,843.76
  6. Step 6: Final answer
    x = 7,127.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.