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Finding the Fourth Proportional to 70,153.64, 96,808.50 and 38,316.68

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Solution

The fourth proportional to 70,153.64, 96,808.50 and 38,316.68 is: 52,875.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,153.64 : 96,808.50 = 38,316.68 : x
  2. Step 2: Convert to fraction form
    70,153.64/96,808.50 = 38,316.68/x
  3. Step 3: Cross multiply
    70,153.64x = 96,808.50 × 38,316.68
  4. Step 4: Simplify right side
    70,153.64x = 3,709,380,315.78
  5. Step 5: Solve for x
    x = 3,709,380,315.78/70,153.64
  6. Step 6: Final answer
    x = 52,875.09

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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.