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Finding the Fourth Proportional to 9,165.56, 12,648.51 and 4,973.81

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Solution

The fourth proportional to 9,165.56, 12,648.51 and 4,973.81 is: 6,863.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.56 : 12,648.51 = 4,973.81 : x
  2. Step 2: Convert to fraction form
    9,165.56/12,648.51 = 4,973.81/x
  3. Step 3: Cross multiply
    9,165.56x = 12,648.51 × 4,973.81
  4. Step 4: Simplify right side
    9,165.56x = 62,911,317.14
  5. Step 5: Solve for x
    x = 62,911,317.14/9,165.56
  6. Step 6: Final answer
    x = 6,863.88

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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.