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Finding the Fourth Proportional to 60,525.40, 90,788.74 and 18,412.34

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Solution

The fourth proportional to 60,525.40, 90,788.74 and 18,412.34 is: 27,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,525.40 : 90,788.74 = 18,412.34 : x
  2. Step 2: Convert to fraction form
    60,525.40/90,788.74 = 18,412.34/x
  3. Step 3: Cross multiply
    60,525.40x = 90,788.74 × 18,412.34
  4. Step 4: Simplify right side
    60,525.40x = 1,671,633,149.05
  5. Step 5: Solve for x
    x = 1,671,633,149.05/60,525.40
  6. Step 6: Final answer
    x = 27,618.70

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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.