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Finding the Fourth Proportional to 70,635.60, 97,473.45 and 38,798.40

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Solution

The fourth proportional to 70,635.60, 97,473.45 and 38,798.40 is: 53,539.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,635.60 : 97,473.45 = 38,798.40 : x
  2. Step 2: Convert to fraction form
    70,635.60/97,473.45 = 38,798.40/x
  3. Step 3: Cross multiply
    70,635.60x = 97,473.45 × 38,798.40
  4. Step 4: Simplify right side
    70,635.60x = 3,781,813,902.48
  5. Step 5: Solve for x
    x = 3,781,813,902.48/70,635.60
  6. Step 6: Final answer
    x = 53,539.77

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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.