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Finding the Fourth Proportional to 48,362.40, 66,740.76 and 27,140.40

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Solution

The fourth proportional to 48,362.40, 66,740.76 and 27,140.40 is: 37,454.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,362.40 : 66,740.76 = 27,140.40 : x
  2. Step 2: Convert to fraction form
    48,362.40/66,740.76 = 27,140.40/x
  3. Step 3: Cross multiply
    48,362.40x = 66,740.76 × 27,140.40
  4. Step 4: Simplify right side
    48,362.40x = 1,811,370,922.70
  5. Step 5: Solve for x
    x = 1,811,370,922.70/48,362.40
  6. Step 6: Final answer
    x = 37,454.12

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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.