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Finding the Fourth Proportional to 15,053.88, 20,774.70 and 8,763.96

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Solution

The fourth proportional to 15,053.88, 20,774.70 and 8,763.96 is: 12,094.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.88 : 20,774.70 = 8,763.96 : x
  2. Step 2: Convert to fraction form
    15,053.88/20,774.70 = 8,763.96/x
  3. Step 3: Cross multiply
    15,053.88x = 20,774.70 × 8,763.96
  4. Step 4: Simplify right side
    15,053.88x = 182,068,639.81
  5. Step 5: Solve for x
    x = 182,068,639.81/15,053.88
  6. Step 6: Final answer
    x = 12,094.47

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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.