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Finding the Fourth Proportional to 19,792,826.40, 29,685,092.40 and 9,702,688.80

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Solution

The fourth proportional to 19,792,826.40, 29,685,092.40 and 9,702,688.80 is: 14,552,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792,826.40 : 29,685,092.40 = 9,702,688.80 : x
  2. Step 2: Convert to fraction form
    19,792,826.40/29,685,092.40 = 9,702,688.80/x
  3. Step 3: Cross multiply
    19,792,826.40x = 29,685,092.40 × 9,702,688.80
  4. Step 4: Simplify right side
    19,792,826.40x = 288,025,213,556,445.12
  5. Step 5: Solve for x
    x = 288,025,213,556,445.12/19,792,826.40
  6. Step 6: Final answer
    x = 14,552,000.19

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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.