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Finding the Fourth Proportional to 8,476.94, 12,688.63 and 7,585.33

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Solution

The fourth proportional to 8,476.94, 12,688.63 and 7,585.33 is: 11,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.94 : 12,688.63 = 7,585.33 : x
  2. Step 2: Convert to fraction form
    8,476.94/12,688.63 = 7,585.33/x
  3. Step 3: Cross multiply
    8,476.94x = 12,688.63 × 7,585.33
  4. Step 4: Simplify right side
    8,476.94x = 96,247,445.80
  5. Step 5: Solve for x
    x = 96,247,445.80/8,476.94
  6. Step 6: Final answer
    x = 11,354.03

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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.