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Finding the Fourth Proportional to 14,295.83, 19,727.78 and 7,835.45

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Solution

The fourth proportional to 14,295.83, 19,727.78 and 7,835.45 is: 10,812.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,295.83 : 19,727.78 = 7,835.45 : x
  2. Step 2: Convert to fraction form
    14,295.83/19,727.78 = 7,835.45/x
  3. Step 3: Cross multiply
    14,295.83x = 19,727.78 × 7,835.45
  4. Step 4: Simplify right side
    14,295.83x = 154,575,895.98
  5. Step 5: Solve for x
    x = 154,575,895.98/14,295.83
  6. Step 6: Final answer
    x = 10,812.66

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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.