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Finding the Fourth Proportional to 28,346.99, 42,527.48 and 8,624.50

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Solution

The fourth proportional to 28,346.99, 42,527.48 and 8,624.50 is: 12,938.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.99 : 42,527.48 = 8,624.50 : x
  2. Step 2: Convert to fraction form
    28,346.99/42,527.48 = 8,624.50/x
  3. Step 3: Cross multiply
    28,346.99x = 42,527.48 × 8,624.50
  4. Step 4: Simplify right side
    28,346.99x = 366,778,101.82
  5. Step 5: Solve for x
    x = 366,778,101.82/28,346.99
  6. Step 6: Final answer
    x = 12,938.88

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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.