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Finding the Fourth Proportional to 14,796.15, 22,248.90 and 12,390.45

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Solution

The fourth proportional to 14,796.15, 22,248.90 and 12,390.45 is: 18,631.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,796.15 : 22,248.90 = 12,390.45 : x
  2. Step 2: Convert to fraction form
    14,796.15/22,248.90 = 12,390.45/x
  3. Step 3: Cross multiply
    14,796.15x = 22,248.90 × 12,390.45
  4. Step 4: Simplify right side
    14,796.15x = 275,673,883.01
  5. Step 5: Solve for x
    x = 275,673,883.01/14,796.15
  6. Step 6: Final answer
    x = 18,631.46

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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.