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Finding the Fourth Proportional to 70,742.16, 97,624.04 and 38,910.98

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Solution

The fourth proportional to 70,742.16, 97,624.04 and 38,910.98 is: 53,697.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,742.16 : 97,624.04 = 38,910.98 : x
  2. Step 2: Convert to fraction form
    70,742.16/97,624.04 = 38,910.98/x
  3. Step 3: Cross multiply
    70,742.16x = 97,624.04 × 38,910.98
  4. Step 4: Simplify right side
    70,742.16x = 3,798,647,117.46
  5. Step 5: Solve for x
    x = 3,798,647,117.46/70,742.16
  6. Step 6: Final answer
    x = 53,697.08

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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.