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Finding the Fourth Proportional to 12,347.15, 17,004.87 and 10,668.02

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Solution

The fourth proportional to 12,347.15, 17,004.87 and 10,668.02 is: 14,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.15 : 17,004.87 = 10,668.02 : x
  2. Step 2: Convert to fraction form
    12,347.15/17,004.87 = 10,668.02/x
  3. Step 3: Cross multiply
    12,347.15x = 17,004.87 × 10,668.02
  4. Step 4: Simplify right side
    12,347.15x = 181,408,208.23
  5. Step 5: Solve for x
    x = 181,408,208.23/12,347.15
  6. Step 6: Final answer
    x = 14,692.32

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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.