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Finding the Fourth Proportional to 45,466.80, 68,200.20 and 29,720.40

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Solution

The fourth proportional to 45,466.80, 68,200.20 and 29,720.40 is: 44,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,466.80 : 68,200.20 = 29,720.40 : x
  2. Step 2: Convert to fraction form
    45,466.80/68,200.20 = 29,720.40/x
  3. Step 3: Cross multiply
    45,466.80x = 68,200.20 × 29,720.40
  4. Step 4: Simplify right side
    45,466.80x = 2,026,937,224.08
  5. Step 5: Solve for x
    x = 2,026,937,224.08/45,466.80
  6. Step 6: Final answer
    x = 44,580.60

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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.