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Finding the Fourth Proportional to 9,711,619.60, 13,571,073.20 and 9,711,619.60

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Solution

The fourth proportional to 9,711,619.60, 13,571,073.20 and 9,711,619.60 is: 13,571,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711,619.60 : 13,571,073.20 = 9,711,619.60 : x
  2. Step 2: Convert to fraction form
    9,711,619.60/13,571,073.20 = 9,711,619.60/x
  3. Step 3: Cross multiply
    9,711,619.60x = 13,571,073.20 × 9,711,619.60
  4. Step 4: Simplify right side
    9,711,619.60x = 131,797,100,482,154.70
  5. Step 5: Solve for x
    x = 131,797,100,482,154.70/9,711,619.60
  6. Step 6: Final answer
    x = 13,571,073.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.