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Finding the Fourth Proportional to 5,529.60, 7,300.80 and 5,529.60

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Solution

The fourth proportional to 5,529.60, 7,300.80 and 5,529.60 is: 7,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,529.60 : 7,300.80 = 5,529.60 : x
  2. Step 2: Convert to fraction form
    5,529.60/7,300.80 = 5,529.60/x
  3. Step 3: Cross multiply
    5,529.60x = 7,300.80 × 5,529.60
  4. Step 4: Simplify right side
    5,529.60x = 40,370,503.68
  5. Step 5: Solve for x
    x = 40,370,503.68/5,529.60
  6. Step 6: Final answer
    x = 7,300.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.