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Finding the Fourth Proportional to 30,484.46, 42,066.59 and 17,053.40

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Solution

The fourth proportional to 30,484.46, 42,066.59 and 17,053.40 is: 23,532.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,484.46 : 42,066.59 = 17,053.40 : x
  2. Step 2: Convert to fraction form
    30,484.46/42,066.59 = 17,053.40/x
  3. Step 3: Cross multiply
    30,484.46x = 42,066.59 × 17,053.40
  4. Step 4: Simplify right side
    30,484.46x = 717,378,090.31
  5. Step 5: Solve for x
    x = 717,378,090.31/30,484.46
  6. Step 6: Final answer
    x = 23,532.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.