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Finding the Fourth Proportional to 48,369.90, 66,746.80 and 27,145.07

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Solution

The fourth proportional to 48,369.90, 66,746.80 and 27,145.07 is: 37,458.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,369.90 : 66,746.80 = 27,145.07 : x
  2. Step 2: Convert to fraction form
    48,369.90/66,746.80 = 27,145.07/x
  3. Step 3: Cross multiply
    48,369.90x = 66,746.80 × 27,145.07
  4. Step 4: Simplify right side
    48,369.90x = 1,811,846,224.54
  5. Step 5: Solve for x
    x = 1,811,846,224.54/48,369.90
  6. Step 6: Final answer
    x = 37,458.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.