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Finding the Fourth Proportional to 5,483.61, 7,516.62 and 5,409.77

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Solution

The fourth proportional to 5,483.61, 7,516.62 and 5,409.77 is: 7,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,483.61 : 7,516.62 = 5,409.77 : x
  2. Step 2: Convert to fraction form
    5,483.61/7,516.62 = 5,409.77/x
  3. Step 3: Cross multiply
    5,483.61x = 7,516.62 × 5,409.77
  4. Step 4: Simplify right side
    5,483.61x = 40,663,147.79
  5. Step 5: Solve for x
    x = 40,663,147.79/5,483.61
  6. Step 6: Final answer
    x = 7,415.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.