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Finding the Fourth Proportional to 70,335.94, 105,503.45 and 17,745.48

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Solution

The fourth proportional to 70,335.94, 105,503.45 and 17,745.48 is: 26,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,335.94 : 105,503.45 = 17,745.48 : x
  2. Step 2: Convert to fraction form
    70,335.94/105,503.45 = 17,745.48/x
  3. Step 3: Cross multiply
    70,335.94x = 105,503.45 × 17,745.48
  4. Step 4: Simplify right side
    70,335.94x = 1,872,208,834.39
  5. Step 5: Solve for x
    x = 1,872,208,834.39/70,335.94
  6. Step 6: Final answer
    x = 26,618.10

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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.