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Finding the Fourth Proportional to 9,965,801.15, 13,961,569.45 and 9,965,801.15

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Solution

The fourth proportional to 9,965,801.15, 13,961,569.45 and 9,965,801.15 is: 13,961,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965,801.15 : 13,961,569.45 = 9,965,801.15 : x
  2. Step 2: Convert to fraction form
    9,965,801.15/13,961,569.45 = 9,965,801.15/x
  3. Step 3: Cross multiply
    9,965,801.15x = 13,961,569.45 × 9,965,801.15
  4. Step 4: Simplify right side
    9,965,801.15x = 139,138,224,880,614.86
  5. Step 5: Solve for x
    x = 139,138,224,880,614.86/9,965,801.15
  6. Step 6: Final answer
    x = 13,961,569.45

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.