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Finding the Fourth Proportional to 13,783,909.80, 20,675,864.70 and 13,571,333.40

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Solution

The fourth proportional to 13,783,909.80, 20,675,864.70 and 13,571,333.40 is: 20,357,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783,909.80 : 20,675,864.70 = 13,571,333.40 : x
  2. Step 2: Convert to fraction form
    13,783,909.80/20,675,864.70 = 13,571,333.40/x
  3. Step 3: Cross multiply
    13,783,909.80x = 20,675,864.70 × 13,571,333.40
  4. Step 4: Simplify right side
    13,783,909.80x = 280,599,053,176,990.97
  5. Step 5: Solve for x
    x = 280,599,053,176,990.97/13,783,909.80
  6. Step 6: Final answer
    x = 20,357,000.10

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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.