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Finding the Fourth Proportional to 14,556.00, 20,087.36 and 8,506.60

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Solution

The fourth proportional to 14,556.00, 20,087.36 and 8,506.60 is: 11,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,556.00 : 20,087.36 = 8,506.60 : x
  2. Step 2: Convert to fraction form
    14,556.00/20,087.36 = 8,506.60/x
  3. Step 3: Cross multiply
    14,556.00x = 20,087.36 × 8,506.60
  4. Step 4: Simplify right side
    14,556.00x = 170,875,075.72
  5. Step 5: Solve for x
    x = 170,875,075.72/14,556.00
  6. Step 6: Final answer
    x = 11,739.15

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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.