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Finding the Fourth Proportional to 70,762.26, 97,651.20 and 38,931.18

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Solution

The fourth proportional to 70,762.26, 97,651.20 and 38,931.18 is: 53,724.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,762.26 : 97,651.20 = 38,931.18 : x
  2. Step 2: Convert to fraction form
    70,762.26/97,651.20 = 38,931.18/x
  3. Step 3: Cross multiply
    70,762.26x = 97,651.20 × 38,931.18
  4. Step 4: Simplify right side
    70,762.26x = 3,801,676,444.42
  5. Step 5: Solve for x
    x = 3,801,676,444.42/70,762.26
  6. Step 6: Final answer
    x = 53,724.63

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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.