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Finding the Fourth Proportional to 70,190.94, 96,870.16 and 38,364.62

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Solution

The fourth proportional to 70,190.94, 96,870.16 and 38,364.62 is: 52,946.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,190.94 : 96,870.16 = 38,364.62 : x
  2. Step 2: Convert to fraction form
    70,190.94/96,870.16 = 38,364.62/x
  3. Step 3: Cross multiply
    70,190.94x = 96,870.16 × 38,364.62
  4. Step 4: Simplify right side
    70,190.94x = 3,716,386,877.74
  5. Step 5: Solve for x
    x = 3,716,386,877.74/70,190.94
  6. Step 6: Final answer
    x = 52,946.82

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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.