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Finding the Fourth Proportional to 61,880.89, 92,655.03 and 39,269.15

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Solution

The fourth proportional to 61,880.89, 92,655.03 and 39,269.15 is: 58,798.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,880.89 : 92,655.03 = 39,269.15 : x
  2. Step 2: Convert to fraction form
    61,880.89/92,655.03 = 39,269.15/x
  3. Step 3: Cross multiply
    61,880.89x = 92,655.03 × 39,269.15
  4. Step 4: Simplify right side
    61,880.89x = 3,638,484,271.32
  5. Step 5: Solve for x
    x = 3,638,484,271.32/61,880.89
  6. Step 6: Final answer
    x = 58,798.19

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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.