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Finding the Fourth Proportional to 45,098.66, 62,223.74 and 28,105.66

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Solution

The fourth proportional to 45,098.66, 62,223.74 and 28,105.66 is: 38,778.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,098.66 : 62,223.74 = 28,105.66 : x
  2. Step 2: Convert to fraction form
    45,098.66/62,223.74 = 28,105.66/x
  3. Step 3: Cross multiply
    45,098.66x = 62,223.74 × 28,105.66
  4. Step 4: Simplify right side
    45,098.66x = 1,748,839,280.37
  5. Step 5: Solve for x
    x = 1,748,839,280.37/45,098.66
  6. Step 6: Final answer
    x = 38,778.08

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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.