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Finding the Fourth Proportional to 52,653.70, 78,960.29 and 41,431.12

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Solution

The fourth proportional to 52,653.70, 78,960.29 and 41,431.12 is: 62,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,653.70 : 78,960.29 = 41,431.12 : x
  2. Step 2: Convert to fraction form
    52,653.70/78,960.29 = 41,431.12/x
  3. Step 3: Cross multiply
    52,653.70x = 78,960.29 × 41,431.12
  4. Step 4: Simplify right side
    52,653.70x = 3,271,413,417.32
  5. Step 5: Solve for x
    x = 3,271,413,417.32/52,653.70
  6. Step 6: Final answer
    x = 62,130.75

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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.