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Finding the Fourth Proportional to 70,276.34, 96,981.09 and 38,445.17

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Solution

The fourth proportional to 70,276.34, 96,981.09 and 38,445.17 is: 53,054.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,276.34 : 96,981.09 = 38,445.17 : x
  2. Step 2: Convert to fraction form
    70,276.34/96,981.09 = 38,445.17/x
  3. Step 3: Cross multiply
    70,276.34x = 96,981.09 × 38,445.17
  4. Step 4: Simplify right side
    70,276.34x = 3,728,454,006.93
  5. Step 5: Solve for x
    x = 3,728,454,006.93/70,276.34
  6. Step 6: Final answer
    x = 53,054.19

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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.