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Finding the Fourth Proportional to 48,841.36, 67,379.76 and 28,662.64

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Solution

The fourth proportional to 48,841.36, 67,379.76 and 28,662.64 is: 39,541.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,841.36 : 67,379.76 = 28,662.64 : x
  2. Step 2: Convert to fraction form
    48,841.36/67,379.76 = 28,662.64/x
  3. Step 3: Cross multiply
    48,841.36x = 67,379.76 × 28,662.64
  4. Step 4: Simplify right side
    48,841.36x = 1,931,281,804.17
  5. Step 5: Solve for x
    x = 1,931,281,804.17/48,841.36
  6. Step 6: Final answer
    x = 39,541.93

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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.