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Finding the Fourth Proportional to 15,062.88, 20,785.84 and 8,848.77

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Solution

The fourth proportional to 15,062.88, 20,785.84 and 8,848.77 is: 12,210.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062.88 : 20,785.84 = 8,848.77 : x
  2. Step 2: Convert to fraction form
    15,062.88/20,785.84 = 8,848.77/x
  3. Step 3: Cross multiply
    15,062.88x = 20,785.84 × 8,848.77
  4. Step 4: Simplify right side
    15,062.88x = 183,929,117.42
  5. Step 5: Solve for x
    x = 183,929,117.42/15,062.88
  6. Step 6: Final answer
    x = 12,210.75

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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.