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Finding the Fourth Proportional to 70,057.40, 96,678.71 and 38,225.61

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Solution

The fourth proportional to 70,057.40, 96,678.71 and 38,225.61 is: 52,751.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,057.40 : 96,678.71 = 38,225.61 : x
  2. Step 2: Convert to fraction form
    70,057.40/96,678.71 = 38,225.61/x
  3. Step 3: Cross multiply
    70,057.40x = 96,678.71 × 38,225.61
  4. Step 4: Simplify right side
    70,057.40x = 3,695,602,472.64
  5. Step 5: Solve for x
    x = 3,695,602,472.64/70,057.40
  6. Step 6: Final answer
    x = 52,751.07

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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.