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Finding the Fourth Proportional to 48,702.40, 73,111.20 and 48,356.80

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Solution

The fourth proportional to 48,702.40, 73,111.20 and 48,356.80 is: 72,592.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,702.40 : 73,111.20 = 48,356.80 : x
  2. Step 2: Convert to fraction form
    48,702.40/73,111.20 = 48,356.80/x
  3. Step 3: Cross multiply
    48,702.40x = 73,111.20 × 48,356.80
  4. Step 4: Simplify right side
    48,702.40x = 3,535,423,676.16
  5. Step 5: Solve for x
    x = 3,535,423,676.16/48,702.40
  6. Step 6: Final answer
    x = 72,592.39

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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.