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Finding the Fourth Proportional to 15,152.92, 20,904.26 and 8,862.52

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Solution

The fourth proportional to 15,152.92, 20,904.26 and 8,862.52 is: 12,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.92 : 20,904.26 = 8,862.52 : x
  2. Step 2: Convert to fraction form
    15,152.92/20,904.26 = 8,862.52/x
  3. Step 3: Cross multiply
    15,152.92x = 20,904.26 × 8,862.52
  4. Step 4: Simplify right side
    15,152.92x = 185,264,422.34
  5. Step 5: Solve for x
    x = 185,264,422.34/15,152.92
  6. Step 6: Final answer
    x = 12,226.32

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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.