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Finding the Fourth Proportional to 12,368.10, 18,552.15 and 3,134.10

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Solution

The fourth proportional to 12,368.10, 18,552.15 and 3,134.10 is: 4,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.10 : 18,552.15 = 3,134.10 : x
  2. Step 2: Convert to fraction form
    12,368.10/18,552.15 = 3,134.10/x
  3. Step 3: Cross multiply
    12,368.10x = 18,552.15 × 3,134.10
  4. Step 4: Simplify right side
    12,368.10x = 58,144,293.32
  5. Step 5: Solve for x
    x = 58,144,293.32/12,368.10
  6. Step 6: Final answer
    x = 4,701.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.