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Finding the Fourth Proportional to 70,703.49, 97,570.58 and 38,872.29

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Solution

The fourth proportional to 70,703.49, 97,570.58 and 38,872.29 is: 53,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,703.49 : 97,570.58 = 38,872.29 : x
  2. Step 2: Convert to fraction form
    70,703.49/97,570.58 = 38,872.29/x
  3. Step 3: Cross multiply
    70,703.49x = 97,570.58 × 38,872.29
  4. Step 4: Simplify right side
    70,703.49x = 3,792,791,686.87
  5. Step 5: Solve for x
    x = 3,792,791,686.87/70,703.49
  6. Step 6: Final answer
    x = 53,643.63

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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.