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Finding the Fourth Proportional to 61,475.47, 92,212.90 and 19,359.11

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Solution

The fourth proportional to 61,475.47, 92,212.90 and 19,359.11 is: 29,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,475.47 : 92,212.90 = 19,359.11 : x
  2. Step 2: Convert to fraction form
    61,475.47/92,212.90 = 19,359.11/x
  3. Step 3: Cross multiply
    61,475.47x = 92,212.90 × 19,359.11
  4. Step 4: Simplify right side
    61,475.47x = 1,785,159,856.65
  5. Step 5: Solve for x
    x = 1,785,159,856.65/61,475.47
  6. Step 6: Final answer
    x = 29,038.57

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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.