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Finding the Fourth Proportional to 31,248.84, 46,860.88 and 13,480.88

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Solution

The fourth proportional to 31,248.84, 46,860.88 and 13,480.88 is: 20,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248.84 : 46,860.88 = 13,480.88 : x
  2. Step 2: Convert to fraction form
    31,248.84/46,860.88 = 13,480.88/x
  3. Step 3: Cross multiply
    31,248.84x = 46,860.88 × 13,480.88
  4. Step 4: Simplify right side
    31,248.84x = 631,725,899.97
  5. Step 5: Solve for x
    x = 631,725,899.97/31,248.84
  6. Step 6: Final answer
    x = 20,215.98

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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.