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Finding the Fourth Proportional to 14,904.32, 20,576.98 and 9,872.86

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Solution

The fourth proportional to 14,904.32, 20,576.98 and 9,872.86 is: 13,630.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,904.32 : 20,576.98 = 9,872.86 : x
  2. Step 2: Convert to fraction form
    14,904.32/20,576.98 = 9,872.86/x
  3. Step 3: Cross multiply
    14,904.32x = 20,576.98 × 9,872.86
  4. Step 4: Simplify right side
    14,904.32x = 203,153,642.76
  5. Step 5: Solve for x
    x = 203,153,642.76/14,904.32
  6. Step 6: Final answer
    x = 13,630.52

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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.