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Finding the Fourth Proportional to 12,764.99, 17,603.12 and 12,026.88

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Solution

The fourth proportional to 12,764.99, 17,603.12 and 12,026.88 is: 16,585.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,764.99 : 17,603.12 = 12,026.88 : x
  2. Step 2: Convert to fraction form
    12,764.99/17,603.12 = 12,026.88/x
  3. Step 3: Cross multiply
    12,764.99x = 17,603.12 × 12,026.88
  4. Step 4: Simplify right side
    12,764.99x = 211,710,641.93
  5. Step 5: Solve for x
    x = 211,710,641.93/12,764.99
  6. Step 6: Final answer
    x = 16,585.25

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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.