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Finding the Fourth Proportional to 18,673,698.69, 25,768,537.72 and 10,301,165.30

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Solution

The fourth proportional to 18,673,698.69, 25,768,537.72 and 10,301,165.30 is: 14,214,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673,698.69 : 25,768,537.72 = 10,301,165.30 : x
  2. Step 2: Convert to fraction form
    18,673,698.69/25,768,537.72 = 10,301,165.30/x
  3. Step 3: Cross multiply
    18,673,698.69x = 25,768,537.72 × 10,301,165.30
  4. Step 4: Simplify right side
    18,673,698.69x = 265,445,966,720,877.16
  5. Step 5: Solve for x
    x = 265,445,966,720,877.16/18,673,698.69
  6. Step 6: Final answer
    x = 14,214,964.65

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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.