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Finding the Fourth Proportional to 5,628.93, 7,763.49 and 5,251.67

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Solution

The fourth proportional to 5,628.93, 7,763.49 and 5,251.67 is: 7,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.93 : 7,763.49 = 5,251.67 : x
  2. Step 2: Convert to fraction form
    5,628.93/7,763.49 = 5,251.67/x
  3. Step 3: Cross multiply
    5,628.93x = 7,763.49 × 5,251.67
  4. Step 4: Simplify right side
    5,628.93x = 40,771,248.71
  5. Step 5: Solve for x
    x = 40,771,248.71/5,628.93
  6. Step 6: Final answer
    x = 7,243.16

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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.