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Finding the Fourth Proportional to 6,592,938.60, 9,889,407.90 and 4,042,021.80

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Solution

The fourth proportional to 6,592,938.60, 9,889,407.90 and 4,042,021.80 is: 6,063,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,592,938.60 : 9,889,407.90 = 4,042,021.80 : x
  2. Step 2: Convert to fraction form
    6,592,938.60/9,889,407.90 = 4,042,021.80/x
  3. Step 3: Cross multiply
    6,592,938.60x = 9,889,407.90 × 4,042,021.80
  4. Step 4: Simplify right side
    6,592,938.60x = 39,973,202,320,892.22
  5. Step 5: Solve for x
    x = 39,973,202,320,892.22/6,592,938.60
  6. Step 6: Final answer
    x = 6,063,032.70

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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.