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Finding the Fourth Proportional to 61,760.76, 85,242.15 and 34,903.59

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Solution

The fourth proportional to 61,760.76, 85,242.15 and 34,903.59 is: 48,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,760.76 : 85,242.15 = 34,903.59 : x
  2. Step 2: Convert to fraction form
    61,760.76/85,242.15 = 34,903.59/x
  3. Step 3: Cross multiply
    61,760.76x = 85,242.15 × 34,903.59
  4. Step 4: Simplify right side
    61,760.76x = 2,975,257,054.32
  5. Step 5: Solve for x
    x = 2,975,257,054.32/61,760.76
  6. Step 6: Final answer
    x = 48,173.91

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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.