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Finding the Fourth Proportional to 14,871.16, 20,520.84 and 8,582.32

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Solution

The fourth proportional to 14,871.16, 20,520.84 and 8,582.32 is: 11,842.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,871.16 : 20,520.84 = 8,582.32 : x
  2. Step 2: Convert to fraction form
    14,871.16/20,520.84 = 8,582.32/x
  3. Step 3: Cross multiply
    14,871.16x = 20,520.84 × 8,582.32
  4. Step 4: Simplify right side
    14,871.16x = 176,116,415.55
  5. Step 5: Solve for x
    x = 176,116,415.55/14,871.16
  6. Step 6: Final answer
    x = 11,842.82

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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.