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Finding the Fourth Proportional to 45,663.54, 68,460.06 and 28,988.88

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Solution

The fourth proportional to 45,663.54, 68,460.06 and 28,988.88 is: 43,460.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,663.54 : 68,460.06 = 28,988.88 : x
  2. Step 2: Convert to fraction form
    45,663.54/68,460.06 = 28,988.88/x
  3. Step 3: Cross multiply
    45,663.54x = 68,460.06 × 28,988.88
  4. Step 4: Simplify right side
    45,663.54x = 1,984,580,464.13
  5. Step 5: Solve for x
    x = 1,984,580,464.13/45,663.54
  6. Step 6: Final answer
    x = 43,460.94

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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.