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Finding the Fourth Proportional to 9,645.63, 14,445.77 and 4,699.77

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Solution

The fourth proportional to 9,645.63, 14,445.77 and 4,699.77 is: 7,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,645.63 : 14,445.77 = 4,699.77 : x
  2. Step 2: Convert to fraction form
    9,645.63/14,445.77 = 4,699.77/x
  3. Step 3: Cross multiply
    9,645.63x = 14,445.77 × 4,699.77
  4. Step 4: Simplify right side
    9,645.63x = 67,891,772.97
  5. Step 5: Solve for x
    x = 67,891,772.97/9,645.63
  6. Step 6: Final answer
    x = 7,038.60

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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.