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Finding the Fourth Proportional to 70,736.04, 97,615.70 and 38,907.08

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Solution

The fourth proportional to 70,736.04, 97,615.70 and 38,907.08 is: 53,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,736.04 : 97,615.70 = 38,907.08 : x
  2. Step 2: Convert to fraction form
    70,736.04/97,615.70 = 38,907.08/x
  3. Step 3: Cross multiply
    70,736.04x = 97,615.70 × 38,907.08
  4. Step 4: Simplify right side
    70,736.04x = 3,797,941,849.16
  5. Step 5: Solve for x
    x = 3,797,941,849.16/70,736.04
  6. Step 6: Final answer
    x = 53,691.75

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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.