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Finding the Fourth Proportional to 55,540.76, 76,566.53 and 39,597.53

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Solution

The fourth proportional to 55,540.76, 76,566.53 and 39,597.53 is: 54,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,540.76 : 76,566.53 = 39,597.53 : x
  2. Step 2: Convert to fraction form
    55,540.76/76,566.53 = 39,597.53/x
  3. Step 3: Cross multiply
    55,540.76x = 76,566.53 × 39,597.53
  4. Step 4: Simplify right side
    55,540.76x = 3,031,845,184.83
  5. Step 5: Solve for x
    x = 3,031,845,184.83/55,540.76
  6. Step 6: Final answer
    x = 54,587.76

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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.