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Finding the Fourth Proportional to 70,551.12, 105,799.95 and 23,154.78

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Solution

The fourth proportional to 70,551.12, 105,799.95 and 23,154.78 is: 34,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,551.12 : 105,799.95 = 23,154.78 : x
  2. Step 2: Convert to fraction form
    70,551.12/105,799.95 = 23,154.78/x
  3. Step 3: Cross multiply
    70,551.12x = 105,799.95 × 23,154.78
  4. Step 4: Simplify right side
    70,551.12x = 2,449,774,566.26
  5. Step 5: Solve for x
    x = 2,449,774,566.26/70,551.12
  6. Step 6: Final answer
    x = 34,723.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.