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Finding the Fourth Proportional to 43,990.64, 60,701.64 and 28,084.40

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Solution

The fourth proportional to 43,990.64, 60,701.64 and 28,084.40 is: 38,753.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,990.64 : 60,701.64 = 28,084.40 : x
  2. Step 2: Convert to fraction form
    43,990.64/60,701.64 = 28,084.40/x
  3. Step 3: Cross multiply
    43,990.64x = 60,701.64 × 28,084.40
  4. Step 4: Simplify right side
    43,990.64x = 1,704,769,138.42
  5. Step 5: Solve for x
    x = 1,704,769,138.42/43,990.64
  6. Step 6: Final answer
    x = 38,753.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.