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Finding the Fourth Proportional to 7,605.63, 11,391.12 and 5,254.95

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Solution

The fourth proportional to 7,605.63, 11,391.12 and 5,254.95 is: 7,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,605.63 : 11,391.12 = 5,254.95 : x
  2. Step 2: Convert to fraction form
    7,605.63/11,391.12 = 5,254.95/x
  3. Step 3: Cross multiply
    7,605.63x = 11,391.12 × 5,254.95
  4. Step 4: Simplify right side
    7,605.63x = 59,859,766.04
  5. Step 5: Solve for x
    x = 59,859,766.04/7,605.63
  6. Step 6: Final answer
    x = 7,870.45

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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.