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Finding the Fourth Proportional to 12,149.30, 17,055.10 and 12,149.30

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Solution

The fourth proportional to 12,149.30, 17,055.10 and 12,149.30 is: 17,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.30 : 17,055.10 = 12,149.30 : x
  2. Step 2: Convert to fraction form
    12,149.30/17,055.10 = 12,149.30/x
  3. Step 3: Cross multiply
    12,149.30x = 17,055.10 × 12,149.30
  4. Step 4: Simplify right side
    12,149.30x = 207,207,526.43
  5. Step 5: Solve for x
    x = 207,207,526.43/12,149.30
  6. Step 6: Final answer
    x = 17,055.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.