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Finding the Fourth Proportional to 3,044.16, 4,565.76 and 853.20

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Solution

The fourth proportional to 3,044.16, 4,565.76 and 853.20 is: 1,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,044.16 : 4,565.76 = 853.20 : x
  2. Step 2: Convert to fraction form
    3,044.16/4,565.76 = 853.20/x
  3. Step 3: Cross multiply
    3,044.16x = 4,565.76 × 853.20
  4. Step 4: Simplify right side
    3,044.16x = 3,895,506.43
  5. Step 5: Solve for x
    x = 3,895,506.43/3,044.16
  6. Step 6: Final answer
    x = 1,279.67

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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.