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Finding the Fourth Proportional to 8,770.16, 12,102 and 5,232.08

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Solution

The fourth proportional to 8,770.16, 12,102 and 5,232.08 is: 7,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.16 : 12,102 = 5,232.08 : x
  2. Step 2: Convert to fraction form
    8,770.16/12,102 = 5,232.08/x
  3. Step 3: Cross multiply
    8,770.16x = 12,102 × 5,232.08
  4. Step 4: Simplify right side
    8,770.16x = 63,318,632.16
  5. Step 5: Solve for x
    x = 63,318,632.16/8,770.16
  6. Step 6: Final answer
    x = 7,219.78

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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.