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Finding the Fourth Proportional to 28,401.96, 42,602.98 and 28,360.92

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Solution

The fourth proportional to 28,401.96, 42,602.98 and 28,360.92 is: 42,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401.96 : 42,602.98 = 28,360.92 : x
  2. Step 2: Convert to fraction form
    28,401.96/42,602.98 = 28,360.92/x
  3. Step 3: Cross multiply
    28,401.96x = 42,602.98 × 28,360.92
  4. Step 4: Simplify right side
    28,401.96x = 1,208,259,707.54
  5. Step 5: Solve for x
    x = 1,208,259,707.54/28,401.96
  6. Step 6: Final answer
    x = 42,541.42

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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.