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Finding the Fourth Proportional to 18,565.84, 25,621.14 and 10,182.16

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Solution

The fourth proportional to 18,565.84, 25,621.14 and 10,182.16 is: 14,051.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.84 : 25,621.14 = 10,182.16 : x
  2. Step 2: Convert to fraction form
    18,565.84/25,621.14 = 10,182.16/x
  3. Step 3: Cross multiply
    18,565.84x = 25,621.14 × 10,182.16
  4. Step 4: Simplify right side
    18,565.84x = 260,878,546.86
  5. Step 5: Solve for x
    x = 260,878,546.86/18,565.84
  6. Step 6: Final answer
    x = 14,051.53

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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.