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Finding the Fourth Proportional to 8,925.08, 12,318.06 and 8,531.36

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Solution

The fourth proportional to 8,925.08, 12,318.06 and 8,531.36 is: 11,774.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.08 : 12,318.06 = 8,531.36 : x
  2. Step 2: Convert to fraction form
    8,925.08/12,318.06 = 8,531.36/x
  3. Step 3: Cross multiply
    8,925.08x = 12,318.06 × 8,531.36
  4. Step 4: Simplify right side
    8,925.08x = 105,089,804.36
  5. Step 5: Solve for x
    x = 105,089,804.36/8,925.08
  6. Step 6: Final answer
    x = 11,774.66

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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.