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Finding the Fourth Proportional to 70,648.34, 97,494.63 and 38,817.16

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Solution

The fourth proportional to 70,648.34, 97,494.63 and 38,817.16 is: 53,567.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,648.34 : 97,494.63 = 38,817.16 : x
  2. Step 2: Convert to fraction form
    70,648.34/97,494.63 = 38,817.16/x
  3. Step 3: Cross multiply
    70,648.34x = 97,494.63 × 38,817.16
  4. Step 4: Simplify right side
    70,648.34x = 3,784,464,651.85
  5. Step 5: Solve for x
    x = 3,784,464,651.85/70,648.34
  6. Step 6: Final answer
    x = 53,567.64

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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.