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Finding the Fourth Proportional to 70,153.96, 96,810.88 and 38,322.98

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Solution

The fourth proportional to 70,153.96, 96,810.88 and 38,322.98 is: 52,884.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,153.96 : 96,810.88 = 38,322.98 : x
  2. Step 2: Convert to fraction form
    70,153.96/96,810.88 = 38,322.98/x
  3. Step 3: Cross multiply
    70,153.96x = 96,810.88 × 38,322.98
  4. Step 4: Simplify right side
    70,153.96x = 3,710,081,418.02
  5. Step 5: Solve for x
    x = 3,710,081,418.02/70,153.96
  6. Step 6: Final answer
    x = 52,884.85

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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.