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Finding the Fourth Proportional to 12,368.60, 18,549.20 and 6,522.02

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Solution

The fourth proportional to 12,368.60, 18,549.20 and 6,522.02 is: 9,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.60 : 18,549.20 = 6,522.02 : x
  2. Step 2: Convert to fraction form
    12,368.60/18,549.20 = 6,522.02/x
  3. Step 3: Cross multiply
    12,368.60x = 18,549.20 × 6,522.02
  4. Step 4: Simplify right side
    12,368.60x = 120,978,253.38
  5. Step 5: Solve for x
    x = 120,978,253.38/12,368.60
  6. Step 6: Final answer
    x = 9,781.08

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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.