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Finding the Fourth Proportional to 70,108.84, 96,752.48 and 38,280.16

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Solution

The fourth proportional to 70,108.84, 96,752.48 and 38,280.16 is: 52,827.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,108.84 : 96,752.48 = 38,280.16 : x
  2. Step 2: Convert to fraction form
    70,108.84/96,752.48 = 38,280.16/x
  3. Step 3: Cross multiply
    70,108.84x = 96,752.48 × 38,280.16
  4. Step 4: Simplify right side
    70,108.84x = 3,703,700,414.80
  5. Step 5: Solve for x
    x = 3,703,700,414.80/70,108.84
  6. Step 6: Final answer
    x = 52,827.87

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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.