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Finding the Fourth Proportional to 70,536.88, 97,343.04 and 38,707.84

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Solution

The fourth proportional to 70,536.88, 97,343.04 and 38,707.84 is: 53,418.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,536.88 : 97,343.04 = 38,707.84 : x
  2. Step 2: Convert to fraction form
    70,536.88/97,343.04 = 38,707.84/x
  3. Step 3: Cross multiply
    70,536.88x = 97,343.04 × 38,707.84
  4. Step 4: Simplify right side
    70,536.88x = 3,767,938,817.43
  5. Step 5: Solve for x
    x = 3,767,938,817.43/70,536.88
  6. Step 6: Final answer
    x = 53,418.00

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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.