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Finding the Fourth Proportional to 65,525.82, 90,365.66 and 48,572.30

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Solution

The fourth proportional to 65,525.82, 90,365.66 and 48,572.30 is: 66,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,525.82 : 90,365.66 = 48,572.30 : x
  2. Step 2: Convert to fraction form
    65,525.82/90,365.66 = 48,572.30/x
  3. Step 3: Cross multiply
    65,525.82x = 90,365.66 × 48,572.30
  4. Step 4: Simplify right side
    65,525.82x = 4,389,267,252.53
  5. Step 5: Solve for x
    x = 4,389,267,252.53/65,525.82
  6. Step 6: Final answer
    x = 66,985.31

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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.