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Finding the Fourth Proportional to 15,233,412.40, 21,383,464.40 and 15,233,412.40

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Solution

The fourth proportional to 15,233,412.40, 21,383,464.40 and 15,233,412.40 is: 21,383,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233,412.40 : 21,383,464.40 = 15,233,412.40 : x
  2. Step 2: Convert to fraction form
    15,233,412.40/21,383,464.40 = 15,233,412.40/x
  3. Step 3: Cross multiply
    15,233,412.40x = 21,383,464.40 × 15,233,412.40
  4. Step 4: Simplify right side
    15,233,412.40x = 325,743,131,745,918.56
  5. Step 5: Solve for x
    x = 325,743,131,745,918.56/15,233,412.40
  6. Step 6: Final answer
    x = 21,383,464.40

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Double scale
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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.