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Finding the Fourth Proportional to 58,585.52, 87,883.68 and 21,139.76

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Solution

The fourth proportional to 58,585.52, 87,883.68 and 21,139.76 is: 31,711.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,585.52 : 87,883.68 = 21,139.76 : x
  2. Step 2: Convert to fraction form
    58,585.52/87,883.68 = 21,139.76/x
  3. Step 3: Cross multiply
    58,585.52x = 87,883.68 × 21,139.76
  4. Step 4: Simplify right side
    58,585.52x = 1,857,839,903.12
  5. Step 5: Solve for x
    x = 1,857,839,903.12/58,585.52
  6. Step 6: Final answer
    x = 31,711.59

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1.5x scale

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.