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Finding the Fourth Proportional to 58,711.95, 81,022.82 and 31,854.51

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Solution

The fourth proportional to 58,711.95, 81,022.82 and 31,854.51 is: 43,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,711.95 : 81,022.82 = 31,854.51 : x
  2. Step 2: Convert to fraction form
    58,711.95/81,022.82 = 31,854.51/x
  3. Step 3: Cross multiply
    58,711.95x = 81,022.82 × 31,854.51
  4. Step 4: Simplify right side
    58,711.95x = 2,580,942,070.65
  5. Step 5: Solve for x
    x = 2,580,942,070.65/58,711.95
  6. Step 6: Final answer
    x = 43,959.40

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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.