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Finding the Fourth Proportional to 70,483.62, 97,270.20 and 38,653.66

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Solution

The fourth proportional to 70,483.62, 97,270.20 and 38,653.66 is: 53,343.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,483.62 : 97,270.20 = 38,653.66 : x
  2. Step 2: Convert to fraction form
    70,483.62/97,270.20 = 38,653.66/x
  3. Step 3: Cross multiply
    70,483.62x = 97,270.20 × 38,653.66
  4. Step 4: Simplify right side
    70,483.62x = 3,759,849,238.93
  5. Step 5: Solve for x
    x = 3,759,849,238.93/70,483.62
  6. Step 6: Final answer
    x = 53,343.59

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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.