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Finding the Fourth Proportional to 70,864.92, 97,783.35 and 40,651.50

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Solution

The fourth proportional to 70,864.92, 97,783.35 and 40,651.50 is: 56,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,864.92 : 97,783.35 = 40,651.50 : x
  2. Step 2: Convert to fraction form
    70,864.92/97,783.35 = 40,651.50/x
  3. Step 3: Cross multiply
    70,864.92x = 97,783.35 × 40,651.50
  4. Step 4: Simplify right side
    70,864.92x = 3,975,039,852.53
  5. Step 5: Solve for x
    x = 3,975,039,852.53/70,864.92
  6. Step 6: Final answer
    x = 56,093.20

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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.