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Finding the Fourth Proportional to 16,695.30, 23,041.95 and 9,620.34

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Solution

The fourth proportional to 16,695.30, 23,041.95 and 9,620.34 is: 13,277.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,695.30 : 23,041.95 = 9,620.34 : x
  2. Step 2: Convert to fraction form
    16,695.30/23,041.95 = 9,620.34/x
  3. Step 3: Cross multiply
    16,695.30x = 23,041.95 × 9,620.34
  4. Step 4: Simplify right side
    16,695.30x = 221,671,393.26
  5. Step 5: Solve for x
    x = 221,671,393.26/16,695.30
  6. Step 6: Final answer
    x = 13,277.47

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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.