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Finding the Fourth Proportional to 8,859.85, 13,290.08 and 4,694.22

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Solution

The fourth proportional to 8,859.85, 13,290.08 and 4,694.22 is: 7,041.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.85 : 13,290.08 = 4,694.22 : x
  2. Step 2: Convert to fraction form
    8,859.85/13,290.08 = 4,694.22/x
  3. Step 3: Cross multiply
    8,859.85x = 13,290.08 × 4,694.22
  4. Step 4: Simplify right side
    8,859.85x = 62,386,559.34
  5. Step 5: Solve for x
    x = 62,386,559.34/8,859.85
  6. Step 6: Final answer
    x = 7,041.49

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Double scale
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Similar ratio
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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.