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Finding the Fourth Proportional to 61,509.93, 92,268.53 and 19,391.34

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Solution

The fourth proportional to 61,509.93, 92,268.53 and 19,391.34 is: 29,088.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,509.93 : 92,268.53 = 19,391.34 : x
  2. Step 2: Convert to fraction form
    61,509.93/92,268.53 = 19,391.34/x
  3. Step 3: Cross multiply
    61,509.93x = 92,268.53 × 19,391.34
  4. Step 4: Simplify right side
    61,509.93x = 1,789,210,436.53
  5. Step 5: Solve for x
    x = 1,789,210,436.53/61,509.93
  6. Step 6: Final answer
    x = 29,088.16

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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.