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Finding the Fourth Proportional to 10,866,906.40, 16,300,359.60 and 4,894,938.40

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Solution

The fourth proportional to 10,866,906.40, 16,300,359.60 and 4,894,938.40 is: 7,342,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866,906.40 : 16,300,359.60 = 4,894,938.40 : x
  2. Step 2: Convert to fraction form
    10,866,906.40/16,300,359.60 = 4,894,938.40/x
  3. Step 3: Cross multiply
    10,866,906.40x = 16,300,359.60 × 4,894,938.40
  4. Step 4: Simplify right side
    10,866,906.40x = 79,789,256,139,848.64
  5. Step 5: Solve for x
    x = 79,789,256,139,848.64/10,866,906.40
  6. Step 6: Final answer
    x = 7,342,407.60

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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.