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Finding the Fourth Proportional to 48,929.20, 73,393.80 and 48,468.40

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Solution

The fourth proportional to 48,929.20, 73,393.80 and 48,468.40 is: 72,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,929.20 : 73,393.80 = 48,468.40 : x
  2. Step 2: Convert to fraction form
    48,929.20/73,393.80 = 48,468.40/x
  3. Step 3: Cross multiply
    48,929.20x = 73,393.80 × 48,468.40
  4. Step 4: Simplify right side
    48,929.20x = 3,557,280,055.92
  5. Step 5: Solve for x
    x = 3,557,280,055.92/48,929.20
  6. Step 6: Final answer
    x = 72,702.60

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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.