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Finding the Fourth Proportional to 14,703.63, 20,295.42 and 11,718.39

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Solution

The fourth proportional to 14,703.63, 20,295.42 and 11,718.39 is: 16,174.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.63 : 20,295.42 = 11,718.39 : x
  2. Step 2: Convert to fraction form
    14,703.63/20,295.42 = 11,718.39/x
  3. Step 3: Cross multiply
    14,703.63x = 20,295.42 × 11,718.39
  4. Step 4: Simplify right side
    14,703.63x = 237,829,646.77
  5. Step 5: Solve for x
    x = 237,829,646.77/14,703.63
  6. Step 6: Final answer
    x = 16,174.89

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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.