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Finding the Fourth Proportional to 8,774.16, 12,108.40 and 4,795.32

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Solution

The fourth proportional to 8,774.16, 12,108.40 and 4,795.32 is: 6,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.16 : 12,108.40 = 4,795.32 : x
  2. Step 2: Convert to fraction form
    8,774.16/12,108.40 = 4,795.32/x
  3. Step 3: Cross multiply
    8,774.16x = 12,108.40 × 4,795.32
  4. Step 4: Simplify right side
    8,774.16x = 58,063,652.69
  5. Step 5: Solve for x
    x = 58,063,652.69/8,774.16
  6. Step 6: Final answer
    x = 6,617.57

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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.