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Finding the Fourth Proportional to 70,596.96, 97,434 and 42,305.28

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Solution

The fourth proportional to 70,596.96, 97,434 and 42,305.28 is: 58,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,596.96 : 97,434 = 42,305.28 : x
  2. Step 2: Convert to fraction form
    70,596.96/97,434 = 42,305.28/x
  3. Step 3: Cross multiply
    70,596.96x = 97,434 × 42,305.28
  4. Step 4: Simplify right side
    70,596.96x = 4,121,972,651.52
  5. Step 5: Solve for x
    x = 4,121,972,651.52/70,596.96
  6. Step 6: Final answer
    x = 58,387.40

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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.