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Finding the Fourth Proportional to 39,491.74, 54,492.51 and 22,721.50

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Solution

The fourth proportional to 39,491.74, 54,492.51 and 22,721.50 is: 31,352.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,491.74 : 54,492.51 = 22,721.50 : x
  2. Step 2: Convert to fraction form
    39,491.74/54,492.51 = 22,721.50/x
  3. Step 3: Cross multiply
    39,491.74x = 54,492.51 × 22,721.50
  4. Step 4: Simplify right side
    39,491.74x = 1,238,151,565.97
  5. Step 5: Solve for x
    x = 1,238,151,565.97/39,491.74
  6. Step 6: Final answer
    x = 31,352.17

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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.