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Finding the Fourth Proportional to 13,656,882.40, 20,485,323.60 and 9,352,210.30

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Solution

The fourth proportional to 13,656,882.40, 20,485,323.60 and 9,352,210.30 is: 14,028,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656,882.40 : 20,485,323.60 = 9,352,210.30 : x
  2. Step 2: Convert to fraction form
    13,656,882.40/20,485,323.60 = 9,352,210.30/x
  3. Step 3: Cross multiply
    13,656,882.40x = 20,485,323.60 × 9,352,210.30
  4. Step 4: Simplify right side
    13,656,882.40x = 191,583,054,370,753.09
  5. Step 5: Solve for x
    x = 191,583,054,370,753.09/13,656,882.40
  6. Step 6: Final answer
    x = 14,028,315.45

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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.