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Finding the Fourth Proportional to 53,390.71, 73,680.71 and 29,518.92

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Solution

The fourth proportional to 53,390.71, 73,680.71 and 29,518.92 is: 40,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,390.71 : 73,680.71 = 29,518.92 : x
  2. Step 2: Convert to fraction form
    53,390.71/73,680.71 = 29,518.92/x
  3. Step 3: Cross multiply
    53,390.71x = 73,680.71 × 29,518.92
  4. Step 4: Simplify right side
    53,390.71x = 2,174,974,981.89
  5. Step 5: Solve for x
    x = 2,174,974,981.89/53,390.71
  6. Step 6: Final answer
    x = 40,736.96

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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.