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Finding the Fourth Proportional to 29,312.51, 43,968.33 and 7,125.80

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Solution

The fourth proportional to 29,312.51, 43,968.33 and 7,125.80 is: 10,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,312.51 : 43,968.33 = 7,125.80 : x
  2. Step 2: Convert to fraction form
    29,312.51/43,968.33 = 7,125.80/x
  3. Step 3: Cross multiply
    29,312.51x = 43,968.33 × 7,125.80
  4. Step 4: Simplify right side
    29,312.51x = 313,309,306.07
  5. Step 5: Solve for x
    x = 313,309,306.07/29,312.51
  6. Step 6: Final answer
    x = 10,688.59

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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.