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Finding the Fourth Proportional to 14,707.17, 20,295.71 and 7,992.63

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Solution

The fourth proportional to 14,707.17, 20,295.71 and 7,992.63 is: 11,029.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.17 : 20,295.71 = 7,992.63 : x
  2. Step 2: Convert to fraction form
    14,707.17/20,295.71 = 7,992.63/x
  3. Step 3: Cross multiply
    14,707.17x = 20,295.71 × 7,992.63
  4. Step 4: Simplify right side
    14,707.17x = 162,216,060.65
  5. Step 5: Solve for x
    x = 162,216,060.65/14,707.17
  6. Step 6: Final answer
    x = 11,029.73

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Half scale
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Double scale
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Similar ratio
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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.