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Finding the Fourth Proportional to 14,635.81, 20,192.65 and 9,332.34

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Solution

The fourth proportional to 14,635.81, 20,192.65 and 9,332.34 is: 12,875.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,635.81 : 20,192.65 = 9,332.34 : x
  2. Step 2: Convert to fraction form
    14,635.81/20,192.65 = 9,332.34/x
  3. Step 3: Cross multiply
    14,635.81x = 20,192.65 × 9,332.34
  4. Step 4: Simplify right side
    14,635.81x = 188,444,675.30
  5. Step 5: Solve for x
    x = 188,444,675.30/14,635.81
  6. Step 6: Final answer
    x = 12,875.59

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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.