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Finding the Fourth Proportional to 70,153.64, 96,811.88 and 38,322.54

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Solution

The fourth proportional to 70,153.64, 96,811.88 and 38,322.54 is: 52,885.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,153.64 : 96,811.88 = 38,322.54 : x
  2. Step 2: Convert to fraction form
    70,153.64/96,811.88 = 38,322.54/x
  3. Step 3: Cross multiply
    70,153.64x = 96,811.88 × 38,322.54
  4. Step 4: Simplify right side
    70,153.64x = 3,710,076,952.16
  5. Step 5: Solve for x
    x = 3,710,076,952.16/70,153.64
  6. Step 6: Final answer
    x = 52,885.03

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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.