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Finding the Fourth Proportional to 70,898.32, 97,836.15 and 39,062.08

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Solution

The fourth proportional to 70,898.32, 97,836.15 and 39,062.08 is: 53,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,898.32 : 97,836.15 = 39,062.08 : x
  2. Step 2: Convert to fraction form
    70,898.32/97,836.15 = 39,062.08/x
  3. Step 3: Cross multiply
    70,898.32x = 97,836.15 × 39,062.08
  4. Step 4: Simplify right side
    70,898.32x = 3,821,683,518.19
  5. Step 5: Solve for x
    x = 3,821,683,518.19/70,898.32
  6. Step 6: Final answer
    x = 53,903.72

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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.