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Finding the Fourth Proportional to 14,618.48, 20,173.52 and 7,904.16

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Solution

The fourth proportional to 14,618.48, 20,173.52 and 7,904.16 is: 10,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.48 : 20,173.52 = 7,904.16 : x
  2. Step 2: Convert to fraction form
    14,618.48/20,173.52 = 7,904.16/x
  3. Step 3: Cross multiply
    14,618.48x = 20,173.52 × 7,904.16
  4. Step 4: Simplify right side
    14,618.48x = 159,454,690.32
  5. Step 5: Solve for x
    x = 159,454,690.32/14,618.48
  6. Step 6: Final answer
    x = 10,907.75

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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.