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Finding the Fourth Proportional to 8,663.47, 11,955.58 and 4,684.58

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Solution

The fourth proportional to 8,663.47, 11,955.58 and 4,684.58 is: 6,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.47 : 11,955.58 = 4,684.58 : x
  2. Step 2: Convert to fraction form
    8,663.47/11,955.58 = 4,684.58/x
  3. Step 3: Cross multiply
    8,663.47x = 11,955.58 × 4,684.58
  4. Step 4: Simplify right side
    8,663.47x = 56,006,870.96
  5. Step 5: Solve for x
    x = 56,006,870.96/8,663.47
  6. Step 6: Final answer
    x = 6,464.72

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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.