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Finding the Fourth Proportional to 48,279.40, 65,384.55 and 48,279.40

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Solution

The fourth proportional to 48,279.40, 65,384.55 and 48,279.40 is: 65,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,279.40 : 65,384.55 = 48,279.40 : x
  2. Step 2: Convert to fraction form
    48,279.40/65,384.55 = 48,279.40/x
  3. Step 3: Cross multiply
    48,279.40x = 65,384.55 × 48,279.40
  4. Step 4: Simplify right side
    48,279.40x = 3,156,726,843.27
  5. Step 5: Solve for x
    x = 3,156,726,843.27/48,279.40
  6. Step 6: Final answer
    x = 65,384.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.