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Finding the Fourth Proportional to 9,702,421.20, 14,525,638.20 and 9,422,485.20

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Solution

The fourth proportional to 9,702,421.20, 14,525,638.20 and 9,422,485.20 is: 14,106,541.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,702,421.20 : 14,525,638.20 = 9,422,485.20 : x
  2. Step 2: Convert to fraction form
    9,702,421.20/14,525,638.20 = 9,422,485.20/x
  3. Step 3: Cross multiply
    9,702,421.20x = 14,525,638.20 × 9,422,485.20
  4. Step 4: Simplify right side
    9,702,421.20x = 136,867,610,960,054.62
  5. Step 5: Solve for x
    x = 136,867,610,960,054.62/9,702,421.20
  6. Step 6: Final answer
    x = 14,106,541.88

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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.