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Finding the Fourth Proportional to 20,595.60, 30,828.60 and 14,763.60

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Solution

The fourth proportional to 20,595.60, 30,828.60 and 14,763.60 is: 22,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.60 : 30,828.60 = 14,763.60 : x
  2. Step 2: Convert to fraction form
    20,595.60/30,828.60 = 14,763.60/x
  3. Step 3: Cross multiply
    20,595.60x = 30,828.60 × 14,763.60
  4. Step 4: Simplify right side
    20,595.60x = 455,141,118.96
  5. Step 5: Solve for x
    x = 455,141,118.96/20,595.60
  6. Step 6: Final answer
    x = 22,098.95

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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.