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Finding the Fourth Proportional to 70,347.21, 97,078.52 and 38,081.67

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Solution

The fourth proportional to 70,347.21, 97,078.52 and 38,081.67 is: 52,552.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,347.21 : 97,078.52 = 38,081.67 : x
  2. Step 2: Convert to fraction form
    70,347.21/97,078.52 = 38,081.67/x
  3. Step 3: Cross multiply
    70,347.21x = 97,078.52 × 38,081.67
  4. Step 4: Simplify right side
    70,347.21x = 3,696,911,972.32
  5. Step 5: Solve for x
    x = 3,696,911,972.32/70,347.21
  6. Step 6: Final answer
    x = 52,552.36

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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.