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Finding the Fourth Proportional to 18,158.66, 25,056.66 and 10,603.22

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Solution

The fourth proportional to 18,158.66, 25,056.66 and 10,603.22 is: 14,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.66 : 25,056.66 = 10,603.22 : x
  2. Step 2: Convert to fraction form
    18,158.66/25,056.66 = 10,603.22/x
  3. Step 3: Cross multiply
    18,158.66x = 25,056.66 × 10,603.22
  4. Step 4: Simplify right side
    18,158.66x = 265,681,278.45
  5. Step 5: Solve for x
    x = 265,681,278.45/18,158.66
  6. Step 6: Final answer
    x = 14,631.11

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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.