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Finding the Fourth Proportional to 58,461.64, 87,701.64 and 19,009.53

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Solution

The fourth proportional to 58,461.64, 87,701.64 and 19,009.53 is: 28,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,461.64 : 87,701.64 = 19,009.53 : x
  2. Step 2: Convert to fraction form
    58,461.64/87,701.64 = 19,009.53/x
  3. Step 3: Cross multiply
    58,461.64x = 87,701.64 × 19,009.53
  4. Step 4: Simplify right side
    58,461.64x = 1,667,166,956.63
  5. Step 5: Solve for x
    x = 1,667,166,956.63/58,461.64
  6. Step 6: Final answer
    x = 28,517.28

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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.