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Finding the Fourth Proportional to 13,842,009.10, 20,763,013.65 and 7,039,564.30

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Solution

The fourth proportional to 13,842,009.10, 20,763,013.65 and 7,039,564.30 is: 10,559,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842,009.10 : 20,763,013.65 = 7,039,564.30 : x
  2. Step 2: Convert to fraction form
    13,842,009.10/20,763,013.65 = 7,039,564.30/x
  3. Step 3: Cross multiply
    13,842,009.10x = 20,763,013.65 × 7,039,564.30
  4. Step 4: Simplify right side
    13,842,009.10x = 146,162,569,650,952.69
  5. Step 5: Solve for x
    x = 146,162,569,650,952.69/13,842,009.10
  6. Step 6: Final answer
    x = 10,559,346.45

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