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Finding the Fourth Proportional to 37,485.92, 51,730.53 and 20,718.92

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Solution

The fourth proportional to 37,485.92, 51,730.53 and 20,718.92 is: 28,592.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,485.92 : 51,730.53 = 20,718.92 : x
  2. Step 2: Convert to fraction form
    37,485.92/51,730.53 = 20,718.92/x
  3. Step 3: Cross multiply
    37,485.92x = 51,730.53 × 20,718.92
  4. Step 4: Simplify right side
    37,485.92x = 1,071,800,712.63
  5. Step 5: Solve for x
    x = 1,071,800,712.63/37,485.92
  6. Step 6: Final answer
    x = 28,592.09

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Double scale
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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.