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Finding the Fourth Proportional to 45,210.34, 67,824.83 and 15,624.28

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Solution

The fourth proportional to 45,210.34, 67,824.83 and 15,624.28 is: 23,439.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,210.34 : 67,824.83 = 15,624.28 : x
  2. Step 2: Convert to fraction form
    45,210.34/67,824.83 = 15,624.28/x
  3. Step 3: Cross multiply
    45,210.34x = 67,824.83 × 15,624.28
  4. Step 4: Simplify right side
    45,210.34x = 1,059,714,134.87
  5. Step 5: Solve for x
    x = 1,059,714,134.87/45,210.34
  6. Step 6: Final answer
    x = 23,439.64

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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.