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Finding the Fourth Proportional to 28,527.86, 42,795.88 and 8,808.10

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Solution

The fourth proportional to 28,527.86, 42,795.88 and 8,808.10 is: 13,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.86 : 42,795.88 = 8,808.10 : x
  2. Step 2: Convert to fraction form
    28,527.86/42,795.88 = 8,808.10/x
  3. Step 3: Cross multiply
    28,527.86x = 42,795.88 × 8,808.10
  4. Step 4: Simplify right side
    28,527.86x = 376,950,390.63
  5. Step 5: Solve for x
    x = 376,950,390.63/28,527.86
  6. Step 6: Final answer
    x = 13,213.41

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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.