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Finding the Fourth Proportional to 58,827.71, 81,182.88 and 31,970.67

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Solution

The fourth proportional to 58,827.71, 81,182.88 and 31,970.67 is: 44,119.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,827.71 : 81,182.88 = 31,970.67 : x
  2. Step 2: Convert to fraction form
    58,827.71/81,182.88 = 31,970.67/x
  3. Step 3: Cross multiply
    58,827.71x = 81,182.88 × 31,970.67
  4. Step 4: Simplify right side
    58,827.71x = 2,595,470,906.28
  5. Step 5: Solve for x
    x = 2,595,470,906.28/58,827.71
  6. Step 6: Final answer
    x = 44,119.87

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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.