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Finding the Fourth Proportional to 45,830.80, 68,797.40 and 42,822.80

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Solution

The fourth proportional to 45,830.80, 68,797.40 and 42,822.80 is: 64,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,830.80 : 68,797.40 = 42,822.80 : x
  2. Step 2: Convert to fraction form
    45,830.80/68,797.40 = 42,822.80/x
  3. Step 3: Cross multiply
    45,830.80x = 68,797.40 × 42,822.80
  4. Step 4: Simplify right side
    45,830.80x = 2,946,097,300.72
  5. Step 5: Solve for x
    x = 2,946,097,300.72/45,830.80
  6. Step 6: Final answer
    x = 64,282.04

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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.