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Finding the Fourth Proportional to 92,589.62, 127,795.25 and 65,740.55

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Solution

The fourth proportional to 92,589.62, 127,795.25 and 65,740.55 is: 90,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,589.62 : 127,795.25 = 65,740.55 : x
  2. Step 2: Convert to fraction form
    92,589.62/127,795.25 = 65,740.55/x
  3. Step 3: Cross multiply
    92,589.62x = 127,795.25 × 65,740.55
  4. Step 4: Simplify right side
    92,589.62x = 8,401,329,547.76
  5. Step 5: Solve for x
    x = 8,401,329,547.76/92,589.62
  6. Step 6: Final answer
    x = 90,737.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.