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Finding the Fourth Proportional to 70,585.97, 97,408.82 and 38,756.93

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Solution

The fourth proportional to 70,585.97, 97,408.82 and 38,756.93 is: 53,484.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,585.97 : 97,408.82 = 38,756.93 : x
  2. Step 2: Convert to fraction form
    70,585.97/97,408.82 = 38,756.93/x
  3. Step 3: Cross multiply
    70,585.97x = 97,408.82 × 38,756.93
  4. Step 4: Simplify right side
    70,585.97x = 3,775,266,427.97
  5. Step 5: Solve for x
    x = 3,775,266,427.97/70,585.97
  6. Step 6: Final answer
    x = 53,484.66

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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.