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Finding the Fourth Proportional to 31,792.77, 43,871.02 and 19,045.74

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Solution

The fourth proportional to 31,792.77, 43,871.02 and 19,045.74 is: 26,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,792.77 : 43,871.02 = 19,045.74 : x
  2. Step 2: Convert to fraction form
    31,792.77/43,871.02 = 19,045.74/x
  3. Step 3: Cross multiply
    31,792.77x = 43,871.02 × 19,045.74
  4. Step 4: Simplify right side
    31,792.77x = 835,556,040.45
  5. Step 5: Solve for x
    x = 835,556,040.45/31,792.77
  6. Step 6: Final answer
    x = 26,281.32

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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.