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Finding the Fourth Proportional to 15,162.50, 20,924.39 and 8,875.01

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Solution

The fourth proportional to 15,162.50, 20,924.39 and 8,875.01 is: 12,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,162.50 : 20,924.39 = 8,875.01 : x
  2. Step 2: Convert to fraction form
    15,162.50/20,924.39 = 8,875.01/x
  3. Step 3: Cross multiply
    15,162.50x = 20,924.39 × 8,875.01
  4. Step 4: Simplify right side
    15,162.50x = 185,704,126.12
  5. Step 5: Solve for x
    x = 185,704,126.12/15,162.50
  6. Step 6: Final answer
    x = 12,247.59

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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.