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Finding the Fourth Proportional to 14,558.51, 21,835.63 and 7,160.98

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Solution

The fourth proportional to 14,558.51, 21,835.63 and 7,160.98 is: 10,740.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558.51 : 21,835.63 = 7,160.98 : x
  2. Step 2: Convert to fraction form
    14,558.51/21,835.63 = 7,160.98/x
  3. Step 3: Cross multiply
    14,558.51x = 21,835.63 × 7,160.98
  4. Step 4: Simplify right side
    14,558.51x = 156,364,364.73
  5. Step 5: Solve for x
    x = 156,364,364.73/14,558.51
  6. Step 6: Final answer
    x = 10,740.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.