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Finding the Fourth Proportional to 70,123.48, 96,769.62 and 38,292.28

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Solution

The fourth proportional to 70,123.48, 96,769.62 and 38,292.28 is: 52,842.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123.48 : 96,769.62 = 38,292.28 : x
  2. Step 2: Convert to fraction form
    70,123.48/96,769.62 = 38,292.28/x
  3. Step 3: Cross multiply
    70,123.48x = 96,769.62 × 38,292.28
  4. Step 4: Simplify right side
    70,123.48x = 3,705,529,384.53
  5. Step 5: Solve for x
    x = 3,705,529,384.53/70,123.48
  6. Step 6: Final answer
    x = 52,842.92

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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.