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Finding the Fourth Proportional to 35,463.30, 53,211.12 and 13,278.42

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Solution

The fourth proportional to 35,463.30, 53,211.12 and 13,278.42 is: 19,923.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,463.30 : 53,211.12 = 13,278.42 : x
  2. Step 2: Convert to fraction form
    35,463.30/53,211.12 = 13,278.42/x
  3. Step 3: Cross multiply
    35,463.30x = 53,211.12 × 13,278.42
  4. Step 4: Simplify right side
    35,463.30x = 706,559,600.03
  5. Step 5: Solve for x
    x = 706,559,600.03/35,463.30
  6. Step 6: Final answer
    x = 19,923.68

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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.