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Finding the Fourth Proportional to 61,819.61, 92,728.40 and 19,699.13

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Solution

The fourth proportional to 61,819.61, 92,728.40 and 19,699.13 is: 29,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,819.61 : 92,728.40 = 19,699.13 : x
  2. Step 2: Convert to fraction form
    61,819.61/92,728.40 = 19,699.13/x
  3. Step 3: Cross multiply
    61,819.61x = 92,728.40 × 19,699.13
  4. Step 4: Simplify right side
    61,819.61x = 1,826,668,342.65
  5. Step 5: Solve for x
    x = 1,826,668,342.65/61,819.61
  6. Step 6: Final answer
    x = 29,548.36

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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.