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Finding the Fourth Proportional to 14,363, 19,820.58 and 7,989.62

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Solution

The fourth proportional to 14,363, 19,820.58 and 7,989.62 is: 11,025.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363 : 19,820.58 = 7,989.62 : x
  2. Step 2: Convert to fraction form
    14,363/19,820.58 = 7,989.62/x
  3. Step 3: Cross multiply
    14,363x = 19,820.58 × 7,989.62
  4. Step 4: Simplify right side
    14,363x = 158,358,902.38
  5. Step 5: Solve for x
    x = 158,358,902.38/14,363
  6. Step 6: Final answer
    x = 11,025.48

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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.