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Finding the Fourth Proportional to 11,501.80, 17,214.30 and 8,045.80

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Solution

The fourth proportional to 11,501.80, 17,214.30 and 8,045.80 is: 12,041.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,501.80 : 17,214.30 = 8,045.80 : x
  2. Step 2: Convert to fraction form
    11,501.80/17,214.30 = 8,045.80/x
  3. Step 3: Cross multiply
    11,501.80x = 17,214.30 × 8,045.80
  4. Step 4: Simplify right side
    11,501.80x = 138,502,814.94
  5. Step 5: Solve for x
    x = 138,502,814.94/11,501.80
  6. Step 6: Final answer
    x = 12,041.84

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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.