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Finding the Fourth Proportional to 5,525.36, 7,639.98 and 5,436.36

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Solution

The fourth proportional to 5,525.36, 7,639.98 and 5,436.36 is: 7,516.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,525.36 : 7,639.98 = 5,436.36 : x
  2. Step 2: Convert to fraction form
    5,525.36/7,639.98 = 5,436.36/x
  3. Step 3: Cross multiply
    5,525.36x = 7,639.98 × 5,436.36
  4. Step 4: Simplify right side
    5,525.36x = 41,533,681.67
  5. Step 5: Solve for x
    x = 41,533,681.67/5,525.36
  6. Step 6: Final answer
    x = 7,516.92

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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.