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Finding the Fourth Proportional to 5,925.12, 8,172 and 5,527.68

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Solution

The fourth proportional to 5,925.12, 8,172 and 5,527.68 is: 7,623.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,925.12 : 8,172 = 5,527.68 : x
  2. Step 2: Convert to fraction form
    5,925.12/8,172 = 5,527.68/x
  3. Step 3: Cross multiply
    5,925.12x = 8,172 × 5,527.68
  4. Step 4: Simplify right side
    5,925.12x = 45,172,200.96
  5. Step 5: Solve for x
    x = 45,172,200.96/5,925.12
  6. Step 6: Final answer
    x = 7,623.85

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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.