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Finding the Fourth Proportional to 37,565.76, 51,840.74 and 20,798.76

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Solution

The fourth proportional to 37,565.76, 51,840.74 and 20,798.76 is: 28,702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,565.76 : 51,840.74 = 20,798.76 : x
  2. Step 2: Convert to fraction form
    37,565.76/51,840.74 = 20,798.76/x
  3. Step 3: Cross multiply
    37,565.76x = 51,840.74 × 20,798.76
  4. Step 4: Simplify right side
    37,565.76x = 1,078,223,109.48
  5. Step 5: Solve for x
    x = 1,078,223,109.48/37,565.76
  6. Step 6: Final answer
    x = 28,702.28

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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.