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Finding the Fourth Proportional to 9,879,798.62, 13,627,795.56 and 7,924,368.68

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Solution

The fourth proportional to 9,879,798.62, 13,627,795.56 and 7,924,368.68 is: 10,930,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879,798.62 : 13,627,795.56 = 7,924,368.68 : x
  2. Step 2: Convert to fraction form
    9,879,798.62/13,627,795.56 = 7,924,368.68/x
  3. Step 3: Cross multiply
    9,879,798.62x = 13,627,795.56 × 7,924,368.68
  4. Step 4: Simplify right side
    9,879,798.62x = 107,991,676,313,107.06
  5. Step 5: Solve for x
    x = 107,991,676,313,107.06/9,879,798.62
  6. Step 6: Final answer
    x = 10,930,554.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.