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Finding the Fourth Proportional to 10,921,358.80, 16,382,038.20 and 3,347,340.40

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Solution

The fourth proportional to 10,921,358.80, 16,382,038.20 and 3,347,340.40 is: 5,021,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,358.80 : 16,382,038.20 = 3,347,340.40 : x
  2. Step 2: Convert to fraction form
    10,921,358.80/16,382,038.20 = 3,347,340.40/x
  3. Step 3: Cross multiply
    10,921,358.80x = 16,382,038.20 × 3,347,340.40
  4. Step 4: Simplify right side
    10,921,358.80x = 54,836,258,301,203.27
  5. Step 5: Solve for x
    x = 54,836,258,301,203.27/10,921,358.80
  6. Step 6: Final answer
    x = 5,021,010.60

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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.