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Finding the Fourth Proportional to 8,848.71, 12,209.54 and 5,310.63

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Solution

The fourth proportional to 8,848.71, 12,209.54 and 5,310.63 is: 7,327.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,848.71 : 12,209.54 = 5,310.63 : x
  2. Step 2: Convert to fraction form
    8,848.71/12,209.54 = 5,310.63/x
  3. Step 3: Cross multiply
    8,848.71x = 12,209.54 × 5,310.63
  4. Step 4: Simplify right side
    8,848.71x = 64,840,322.86
  5. Step 5: Solve for x
    x = 64,840,322.86/8,848.71
  6. Step 6: Final answer
    x = 7,327.66

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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.