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Finding the Fourth Proportional to 19,699.13, 29,548.70 and 5,848.13

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Solution

The fourth proportional to 19,699.13, 29,548.70 and 5,848.13 is: 8,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.13 : 29,548.70 = 5,848.13 : x
  2. Step 2: Convert to fraction form
    19,699.13/29,548.70 = 5,848.13/x
  3. Step 3: Cross multiply
    19,699.13x = 29,548.70 × 5,848.13
  4. Step 4: Simplify right side
    19,699.13x = 172,804,638.93
  5. Step 5: Solve for x
    x = 172,804,638.93/19,699.13
  6. Step 6: Final answer
    x = 8,772.20

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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.