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Finding the Fourth Proportional to 14,784.60, 22,112.90 and 13,235.80

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Solution

The fourth proportional to 14,784.60, 22,112.90 and 13,235.80 is: 19,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,784.60 : 22,112.90 = 13,235.80 : x
  2. Step 2: Convert to fraction form
    14,784.60/22,112.90 = 13,235.80/x
  3. Step 3: Cross multiply
    14,784.60x = 22,112.90 × 13,235.80
  4. Step 4: Simplify right side
    14,784.60x = 292,681,921.82
  5. Step 5: Solve for x
    x = 292,681,921.82/14,784.60
  6. Step 6: Final answer
    x = 19,796.40

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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.