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Finding the Fourth Proportional to 28,191,504.40, 39,383,075.60 and 28,191,504.40

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Solution

The fourth proportional to 28,191,504.40, 39,383,075.60 and 28,191,504.40 is: 39,383,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191,504.40 : 39,383,075.60 = 28,191,504.40 : x
  2. Step 2: Convert to fraction form
    28,191,504.40/39,383,075.60 = 28,191,504.40/x
  3. Step 3: Cross multiply
    28,191,504.40x = 39,383,075.60 × 28,191,504.40
  4. Step 4: Simplify right side
    28,191,504.40x = 1,110,268,149,062,932.62
  5. Step 5: Solve for x
    x = 1,110,268,149,062,932.62/28,191,504.40
  6. Step 6: Final answer
    x = 39,383,075.60

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1.5x scale

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.