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Finding the Fourth Proportional to 52,437.42, 78,654.06 and 12,993.48

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Solution

The fourth proportional to 52,437.42, 78,654.06 and 12,993.48 is: 19,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,437.42 : 78,654.06 = 12,993.48 : x
  2. Step 2: Convert to fraction form
    52,437.42/78,654.06 = 12,993.48/x
  3. Step 3: Cross multiply
    52,437.42x = 78,654.06 × 12,993.48
  4. Step 4: Simplify right side
    52,437.42x = 1,021,989,955.53
  5. Step 5: Solve for x
    x = 1,021,989,955.53/52,437.42
  6. Step 6: Final answer
    x = 19,489.71

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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.