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Finding the Fourth Proportional to 18,465.42, 27,705.65 and 8,598.63

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Solution

The fourth proportional to 18,465.42, 27,705.65 and 8,598.63 is: 12,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.42 : 27,705.65 = 8,598.63 : x
  2. Step 2: Convert to fraction form
    18,465.42/27,705.65 = 8,598.63/x
  3. Step 3: Cross multiply
    18,465.42x = 27,705.65 × 8,598.63
  4. Step 4: Simplify right side
    18,465.42x = 238,230,633.26
  5. Step 5: Solve for x
    x = 238,230,633.26/18,465.42
  6. Step 6: Final answer
    x = 12,901.45

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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.