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Finding the Fourth Proportional to 70,047.05, 96,661.55 and 38,214.05

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Solution

The fourth proportional to 70,047.05, 96,661.55 and 38,214.05 is: 52,733.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,047.05 : 96,661.55 = 38,214.05 : x
  2. Step 2: Convert to fraction form
    70,047.05/96,661.55 = 38,214.05/x
  3. Step 3: Cross multiply
    70,047.05x = 96,661.55 × 38,214.05
  4. Step 4: Simplify right side
    70,047.05x = 3,693,828,917.00
  5. Step 5: Solve for x
    x = 3,693,828,917.00/70,047.05
  6. Step 6: Final answer
    x = 52,733.54

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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.