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Finding the Fourth Proportional to 7,695.73, 10,619.98 and 4,338.55

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Solution

The fourth proportional to 7,695.73, 10,619.98 and 4,338.55 is: 5,987.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,695.73 : 10,619.98 = 4,338.55 : x
  2. Step 2: Convert to fraction form
    7,695.73/10,619.98 = 4,338.55/x
  3. Step 3: Cross multiply
    7,695.73x = 10,619.98 × 4,338.55
  4. Step 4: Simplify right side
    7,695.73x = 46,075,314.23
  5. Step 5: Solve for x
    x = 46,075,314.23/7,695.73
  6. Step 6: Final answer
    x = 5,987.13

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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.