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Finding the Fourth Proportional to 15,170.76, 22,780.84 and 9,364.28

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Solution

The fourth proportional to 15,170.76, 22,780.84 and 9,364.28 is: 14,061.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,170.76 : 22,780.84 = 9,364.28 : x
  2. Step 2: Convert to fraction form
    15,170.76/22,780.84 = 9,364.28/x
  3. Step 3: Cross multiply
    15,170.76x = 22,780.84 × 9,364.28
  4. Step 4: Simplify right side
    15,170.76x = 213,326,164.40
  5. Step 5: Solve for x
    x = 213,326,164.40/15,170.76
  6. Step 6: Final answer
    x = 14,061.67

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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.