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Finding the Fourth Proportional to 8,561.04, 11,814.78 and 4,784.22

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Solution

The fourth proportional to 8,561.04, 11,814.78 and 4,784.22 is: 6,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.04 : 11,814.78 = 4,784.22 : x
  2. Step 2: Convert to fraction form
    8,561.04/11,814.78 = 4,784.22/x
  3. Step 3: Cross multiply
    8,561.04x = 11,814.78 × 4,784.22
  4. Step 4: Simplify right side
    8,561.04x = 56,524,506.77
  5. Step 5: Solve for x
    x = 56,524,506.77/8,561.04
  6. Step 6: Final answer
    x = 6,602.53

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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.