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Finding the Fourth Proportional to 45,065.54, 67,602.90 and 15,479.54

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Solution

The fourth proportional to 45,065.54, 67,602.90 and 15,479.54 is: 23,220.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,065.54 : 67,602.90 = 15,479.54 : x
  2. Step 2: Convert to fraction form
    45,065.54/67,602.90 = 15,479.54/x
  3. Step 3: Cross multiply
    45,065.54x = 67,602.90 × 15,479.54
  4. Step 4: Simplify right side
    45,065.54x = 1,046,461,794.67
  5. Step 5: Solve for x
    x = 1,046,461,794.67/45,065.54
  6. Step 6: Final answer
    x = 23,220.89

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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.