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Finding the Fourth Proportional to 70,252.56, 96,948.60 and 38,421.36

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Solution

The fourth proportional to 70,252.56, 96,948.60 and 38,421.36 is: 53,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,252.56 : 96,948.60 = 38,421.36 : x
  2. Step 2: Convert to fraction form
    70,252.56/96,948.60 = 38,421.36/x
  3. Step 3: Cross multiply
    70,252.56x = 96,948.60 × 38,421.36
  4. Step 4: Simplify right side
    70,252.56x = 3,724,897,062.10
  5. Step 5: Solve for x
    x = 3,724,897,062.10/70,252.56
  6. Step 6: Final answer
    x = 53,021.51

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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.