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Finding the Fourth Proportional to 11,955.05, 17,910.06 and 7,010

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Solution

The fourth proportional to 11,955.05, 17,910.06 and 7,010 is: 10,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.05 : 17,910.06 = 7,010 : x
  2. Step 2: Convert to fraction form
    11,955.05/17,910.06 = 7,010/x
  3. Step 3: Cross multiply
    11,955.05x = 17,910.06 × 7,010
  4. Step 4: Simplify right side
    11,955.05x = 125,549,520.60
  5. Step 5: Solve for x
    x = 125,549,520.60/11,955.05
  6. Step 6: Final answer
    x = 10,501.80

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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.