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Finding the Fourth Proportional to 44,533.80, 66,800.70 and 21,205.80

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Solution

The fourth proportional to 44,533.80, 66,800.70 and 21,205.80 is: 31,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,533.80 : 66,800.70 = 21,205.80 : x
  2. Step 2: Convert to fraction form
    44,533.80/66,800.70 = 21,205.80/x
  3. Step 3: Cross multiply
    44,533.80x = 66,800.70 × 21,205.80
  4. Step 4: Simplify right side
    44,533.80x = 1,416,562,284.06
  5. Step 5: Solve for x
    x = 1,416,562,284.06/44,533.80
  6. Step 6: Final answer
    x = 31,808.70

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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.