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Finding the Fourth Proportional to 70,934.82, 97,888.88 and 38,669.80

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Solution

The fourth proportional to 70,934.82, 97,888.88 and 38,669.80 is: 53,363.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,934.82 : 97,888.88 = 38,669.80 : x
  2. Step 2: Convert to fraction form
    70,934.82/97,888.88 = 38,669.80/x
  3. Step 3: Cross multiply
    70,934.82x = 97,888.88 × 38,669.80
  4. Step 4: Simplify right side
    70,934.82x = 3,785,343,411.82
  5. Step 5: Solve for x
    x = 3,785,343,411.82/70,934.82
  6. Step 6: Final answer
    x = 53,363.69

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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.