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Finding the Fourth Proportional to 10,934,996.80, 16,402,495.20 and 3,360,978.40

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Solution

The fourth proportional to 10,934,996.80, 16,402,495.20 and 3,360,978.40 is: 5,041,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,934,996.80 : 16,402,495.20 = 3,360,978.40 : x
  2. Step 2: Convert to fraction form
    10,934,996.80/16,402,495.20 = 3,360,978.40/x
  3. Step 3: Cross multiply
    10,934,996.80x = 16,402,495.20 × 3,360,978.40
  4. Step 4: Simplify right side
    10,934,996.80x = 55,128,432,073,303.68
  5. Step 5: Solve for x
    x = 55,128,432,073,303.68/10,934,996.80
  6. Step 6: Final answer
    x = 5,041,467.60

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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.