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Finding the Fourth Proportional to 61,439.25, 92,173.50 and 19,886.25

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Solution

The fourth proportional to 61,439.25, 92,173.50 and 19,886.25 is: 29,834.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,439.25 : 92,173.50 = 19,886.25 : x
  2. Step 2: Convert to fraction form
    61,439.25/92,173.50 = 19,886.25/x
  3. Step 3: Cross multiply
    61,439.25x = 92,173.50 × 19,886.25
  4. Step 4: Simplify right side
    61,439.25x = 1,832,985,264.38
  5. Step 5: Solve for x
    x = 1,832,985,264.38/61,439.25
  6. Step 6: Final answer
    x = 29,834.11

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1.5x scale

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.