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Finding the Fourth Proportional to 14,117.60, 21,192.60 and 8,577.20

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Solution

The fourth proportional to 14,117.60, 21,192.60 and 8,577.20 is: 12,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.60 : 21,192.60 = 8,577.20 : x
  2. Step 2: Convert to fraction form
    14,117.60/21,192.60 = 8,577.20/x
  3. Step 3: Cross multiply
    14,117.60x = 21,192.60 × 8,577.20
  4. Step 4: Simplify right side
    14,117.60x = 181,773,168.72
  5. Step 5: Solve for x
    x = 181,773,168.72/14,117.60
  6. Step 6: Final answer
    x = 12,875.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.