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Finding the Fourth Proportional to 70,613.46, 97,446.51 and 38,784.41

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Solution

The fourth proportional to 70,613.46, 97,446.51 and 38,784.41 is: 53,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,613.46 : 97,446.51 = 38,784.41 : x
  2. Step 2: Convert to fraction form
    70,613.46/97,446.51 = 38,784.41/x
  3. Step 3: Cross multiply
    70,613.46x = 97,446.51 × 38,784.41
  4. Step 4: Simplify right side
    70,613.46x = 3,779,405,396.91
  5. Step 5: Solve for x
    x = 3,779,405,396.91/70,613.46
  6. Step 6: Final answer
    x = 53,522.45

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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.