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Finding the Fourth Proportional to 14,256,907.80, 20,010,059.40 and 14,256,907.80

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Solution

The fourth proportional to 14,256,907.80, 20,010,059.40 and 14,256,907.80 is: 20,010,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,256,907.80 : 20,010,059.40 = 14,256,907.80 : x
  2. Step 2: Convert to fraction form
    14,256,907.80/20,010,059.40 = 14,256,907.80/x
  3. Step 3: Cross multiply
    14,256,907.80x = 20,010,059.40 × 14,256,907.80
  4. Step 4: Simplify right side
    14,256,907.80x = 285,281,571,938,323.31
  5. Step 5: Solve for x
    x = 285,281,571,938,323.31/14,256,907.80
  6. Step 6: Final answer
    x = 20,010,059.40

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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.