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Finding the Fourth Proportional to 58,615.64, 80,888.94 and 31,756.55

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Solution

The fourth proportional to 58,615.64, 80,888.94 and 31,756.55 is: 43,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,615.64 : 80,888.94 = 31,756.55 : x
  2. Step 2: Convert to fraction form
    58,615.64/80,888.94 = 31,756.55/x
  3. Step 3: Cross multiply
    58,615.64x = 80,888.94 × 31,756.55
  4. Step 4: Simplify right side
    58,615.64x = 2,568,753,263.11
  5. Step 5: Solve for x
    x = 2,568,753,263.11/58,615.64
  6. Step 6: Final answer
    x = 43,823.68

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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.