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Finding the Fourth Proportional to 55,598.68, 76,715.40 and 31,724.74

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Solution

The fourth proportional to 55,598.68, 76,715.40 and 31,724.74 is: 43,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,598.68 : 76,715.40 = 31,724.74 : x
  2. Step 2: Convert to fraction form
    55,598.68/76,715.40 = 31,724.74/x
  3. Step 3: Cross multiply
    55,598.68x = 76,715.40 × 31,724.74
  4. Step 4: Simplify right side
    55,598.68x = 2,433,776,119.00
  5. Step 5: Solve for x
    x = 2,433,776,119.00/55,598.68
  6. Step 6: Final answer
    x = 43,773.99

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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.