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Finding the Fourth Proportional to 28,963.40, 43,445.10 and 9,241.80

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Solution

The fourth proportional to 28,963.40, 43,445.10 and 9,241.80 is: 13,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.40 : 43,445.10 = 9,241.80 : x
  2. Step 2: Convert to fraction form
    28,963.40/43,445.10 = 9,241.80/x
  3. Step 3: Cross multiply
    28,963.40x = 43,445.10 × 9,241.80
  4. Step 4: Simplify right side
    28,963.40x = 401,510,925.18
  5. Step 5: Solve for x
    x = 401,510,925.18/28,963.40
  6. Step 6: Final answer
    x = 13,862.70

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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.