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Finding the Fourth Proportional to 19,551.92, 29,339.76 and 8,461.52

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Solution

The fourth proportional to 19,551.92, 29,339.76 and 8,461.52 is: 12,697.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.92 : 29,339.76 = 8,461.52 : x
  2. Step 2: Convert to fraction form
    19,551.92/29,339.76 = 8,461.52/x
  3. Step 3: Cross multiply
    19,551.92x = 29,339.76 × 8,461.52
  4. Step 4: Simplify right side
    19,551.92x = 248,258,966.04
  5. Step 5: Solve for x
    x = 248,258,966.04/19,551.92
  6. Step 6: Final answer
    x = 12,697.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.