Home / 51,632.16-71,251.26-28,970.76

Finding the Fourth Proportional to 51,632.16, 71,251.26 and 28,970.76

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Solution

The fourth proportional to 51,632.16, 71,251.26 and 28,970.76 is: 39,979.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,632.16 : 71,251.26 = 28,970.76 : x
  2. Step 2: Convert to fraction form
    51,632.16/71,251.26 = 28,970.76/x
  3. Step 3: Cross multiply
    51,632.16x = 71,251.26 × 28,970.76
  4. Step 4: Simplify right side
    51,632.16x = 2,064,203,153.16
  5. Step 5: Solve for x
    x = 2,064,203,153.16/51,632.16
  6. Step 6: Final answer
    x = 39,979.02

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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.