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Finding the Fourth Proportional to 28,066.08, 42,090.36 and 9,341.74

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Solution

The fourth proportional to 28,066.08, 42,090.36 and 9,341.74 is: 14,009.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.08 : 42,090.36 = 9,341.74 : x
  2. Step 2: Convert to fraction form
    28,066.08/42,090.36 = 9,341.74/x
  3. Step 3: Cross multiply
    28,066.08x = 42,090.36 × 9,341.74
  4. Step 4: Simplify right side
    28,066.08x = 393,197,052.02
  5. Step 5: Solve for x
    x = 393,197,052.02/28,066.08
  6. Step 6: Final answer
    x = 14,009.69

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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.