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Finding the Fourth Proportional to 40,836.88, 61,271.88 and 27,681.76

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Solution

The fourth proportional to 40,836.88, 61,271.88 and 27,681.76 is: 41,533.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,836.88 : 61,271.88 = 27,681.76 : x
  2. Step 2: Convert to fraction form
    40,836.88/61,271.88 = 27,681.76/x
  3. Step 3: Cross multiply
    40,836.88x = 61,271.88 × 27,681.76
  4. Step 4: Simplify right side
    40,836.88x = 1,696,113,476.91
  5. Step 5: Solve for x
    x = 1,696,113,476.91/40,836.88
  6. Step 6: Final answer
    x = 41,533.87

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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.