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Finding the Fourth Proportional to 70,047.84, 96,666.34 and 38,217.40

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Solution

The fourth proportional to 70,047.84, 96,666.34 and 38,217.40 is: 52,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,047.84 : 96,666.34 = 38,217.40 : x
  2. Step 2: Convert to fraction form
    70,047.84/96,666.34 = 38,217.40/x
  3. Step 3: Cross multiply
    70,047.84x = 96,666.34 × 38,217.40
  4. Step 4: Simplify right side
    70,047.84x = 3,694,336,182.32
  5. Step 5: Solve for x
    x = 3,694,336,182.32/70,047.84
  6. Step 6: Final answer
    x = 52,740.19

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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.