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Finding the Fourth Proportional to 62,617.41, 86,420.88 and 38,751.77

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Solution

The fourth proportional to 62,617.41, 86,420.88 and 38,751.77 is: 53,482.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,617.41 : 86,420.88 = 38,751.77 : x
  2. Step 2: Convert to fraction form
    62,617.41/86,420.88 = 38,751.77/x
  3. Step 3: Cross multiply
    62,617.41x = 86,420.88 × 38,751.77
  4. Step 4: Simplify right side
    62,617.41x = 3,348,961,871.20
  5. Step 5: Solve for x
    x = 3,348,961,871.20/62,617.41
  6. Step 6: Final answer
    x = 53,482.92

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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.