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Finding the Fourth Proportional to 28,244,056.20, 42,366,084.30 and 28,244,056.20

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Solution

The fourth proportional to 28,244,056.20, 42,366,084.30 and 28,244,056.20 is: 42,366,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244,056.20 : 42,366,084.30 = 28,244,056.20 : x
  2. Step 2: Convert to fraction form
    28,244,056.20/42,366,084.30 = 28,244,056.20/x
  3. Step 3: Cross multiply
    28,244,056.20x = 42,366,084.30 × 28,244,056.20
  4. Step 4: Simplify right side
    28,244,056.20x = 1,196,590,065,943,137.50
  5. Step 5: Solve for x
    x = 1,196,590,065,943,137.50/28,244,056.20
  6. Step 6: Final answer
    x = 42,366,084.30

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Double scale
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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.