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Finding the Fourth Proportional to 55,700.59, 83,555.81 and 15,719.93

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Solution

The fourth proportional to 55,700.59, 83,555.81 and 15,719.93 is: 23,581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,700.59 : 83,555.81 = 15,719.93 : x
  2. Step 2: Convert to fraction form
    55,700.59/83,555.81 = 15,719.93/x
  3. Step 3: Cross multiply
    55,700.59x = 83,555.81 × 15,719.93
  4. Step 4: Simplify right side
    55,700.59x = 1,313,491,484.29
  5. Step 5: Solve for x
    x = 1,313,491,484.29/55,700.59
  6. Step 6: Final answer
    x = 23,581.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.