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Finding the Fourth Proportional to 15,233,411.40, 21,383,463 and 15,233,411.40

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Solution

The fourth proportional to 15,233,411.40, 21,383,463 and 15,233,411.40 is: 21,383,463

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233,411.40 : 21,383,463 = 15,233,411.40 : x
  2. Step 2: Convert to fraction form
    15,233,411.40/21,383,463 = 15,233,411.40/x
  3. Step 3: Cross multiply
    15,233,411.40x = 21,383,463 × 15,233,411.40
  4. Step 4: Simplify right side
    15,233,411.40x = 325,743,089,035,678.19
  5. Step 5: Solve for x
    x = 325,743,089,035,678.19/15,233,411.40
  6. Step 6: Final answer
    x = 21,383,463

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Double scale
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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.