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Finding the Fourth Proportional to 70,611.84, 97,443.95 and 38,347.11

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Solution

The fourth proportional to 70,611.84, 97,443.95 and 38,347.11 is: 52,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,611.84 : 97,443.95 = 38,347.11 : x
  2. Step 2: Convert to fraction form
    70,611.84/97,443.95 = 38,347.11/x
  3. Step 3: Cross multiply
    70,611.84x = 97,443.95 × 38,347.11
  4. Step 4: Simplify right side
    70,611.84x = 3,736,693,677.75
  5. Step 5: Solve for x
    x = 3,736,693,677.75/70,611.84
  6. Step 6: Final answer
    x = 52,918.80

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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.