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Finding the Fourth Proportional to 10,392,843.90, 15,580,971.45 and 4,404,287.10

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Solution

The fourth proportional to 10,392,843.90, 15,580,971.45 and 4,404,287.10 is: 6,602,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,392,843.90 : 15,580,971.45 = 4,404,287.10 : x
  2. Step 2: Convert to fraction form
    10,392,843.90/15,580,971.45 = 4,404,287.10/x
  3. Step 3: Cross multiply
    10,392,843.90x = 15,580,971.45 × 4,404,287.10
  4. Step 4: Simplify right side
    10,392,843.90x = 68,623,071,562,703.29
  5. Step 5: Solve for x
    x = 68,623,071,562,703.29/10,392,843.90
  6. Step 6: Final answer
    x = 6,602,915.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.