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Finding the Fourth Proportional to 45,970.80, 68,956.20 and 16,389.60

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Solution

The fourth proportional to 45,970.80, 68,956.20 and 16,389.60 is: 24,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,970.80 : 68,956.20 = 16,389.60 : x
  2. Step 2: Convert to fraction form
    45,970.80/68,956.20 = 16,389.60/x
  3. Step 3: Cross multiply
    45,970.80x = 68,956.20 × 16,389.60
  4. Step 4: Simplify right side
    45,970.80x = 1,130,164,535.52
  5. Step 5: Solve for x
    x = 1,130,164,535.52/45,970.80
  6. Step 6: Final answer
    x = 24,584.40

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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.