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Finding the Fourth Proportional to 15,089.60, 22,619.82 and 5,221.46

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Solution

The fourth proportional to 15,089.60, 22,619.82 and 5,221.46 is: 7,827.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,089.60 : 22,619.82 = 5,221.46 : x
  2. Step 2: Convert to fraction form
    15,089.60/22,619.82 = 5,221.46/x
  3. Step 3: Cross multiply
    15,089.60x = 22,619.82 × 5,221.46
  4. Step 4: Simplify right side
    15,089.60x = 118,108,485.34
  5. Step 5: Solve for x
    x = 118,108,485.34/15,089.60
  6. Step 6: Final answer
    x = 7,827.14

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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.