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Finding the Fourth Proportional to 70,678.96, 97,538.80 and 38,848.68

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Solution

The fourth proportional to 70,678.96, 97,538.80 and 38,848.68 is: 53,612.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,678.96 : 97,538.80 = 38,848.68 : x
  2. Step 2: Convert to fraction form
    70,678.96/97,538.80 = 38,848.68/x
  3. Step 3: Cross multiply
    70,678.96x = 97,538.80 × 38,848.68
  4. Step 4: Simplify right side
    70,678.96x = 3,789,253,628.78
  5. Step 5: Solve for x
    x = 3,789,253,628.78/70,678.96
  6. Step 6: Final answer
    x = 53,612.19

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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.