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Finding the Fourth Proportional to 45,316.74, 67,984.83 and 19,006.32

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Solution

The fourth proportional to 45,316.74, 67,984.83 and 19,006.32 is: 28,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,316.74 : 67,984.83 = 19,006.32 : x
  2. Step 2: Convert to fraction form
    45,316.74/67,984.83 = 19,006.32/x
  3. Step 3: Cross multiply
    45,316.74x = 67,984.83 × 19,006.32
  4. Step 4: Simplify right side
    45,316.74x = 1,292,141,434.13
  5. Step 5: Solve for x
    x = 1,292,141,434.13/45,316.74
  6. Step 6: Final answer
    x = 28,513.56

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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.