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Finding the Fourth Proportional to 7,988.95, 11,023.95 and 4,632.85

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Solution

The fourth proportional to 7,988.95, 11,023.95 and 4,632.85 is: 6,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.95 : 11,023.95 = 4,632.85 : x
  2. Step 2: Convert to fraction form
    7,988.95/11,023.95 = 4,632.85/x
  3. Step 3: Cross multiply
    7,988.95x = 11,023.95 × 4,632.85
  4. Step 4: Simplify right side
    7,988.95x = 51,072,306.76
  5. Step 5: Solve for x
    x = 51,072,306.76/7,988.95
  6. Step 6: Final answer
    x = 6,392.87

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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.