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Finding the Fourth Proportional to 14,355.93, 19,809.77 and 8,977.33

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Solution

The fourth proportional to 14,355.93, 19,809.77 and 8,977.33 is: 12,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,355.93 : 19,809.77 = 8,977.33 : x
  2. Step 2: Convert to fraction form
    14,355.93/19,809.77 = 8,977.33/x
  3. Step 3: Cross multiply
    14,355.93x = 19,809.77 × 8,977.33
  4. Step 4: Simplify right side
    14,355.93x = 177,838,822.39
  5. Step 5: Solve for x
    x = 177,838,822.39/14,355.93
  6. Step 6: Final answer
    x = 12,387.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.