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Finding the Fourth Proportional to 35,686.70, 53,530.05 and 14,910.20

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Solution

The fourth proportional to 35,686.70, 53,530.05 and 14,910.20 is: 22,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,686.70 : 53,530.05 = 14,910.20 : x
  2. Step 2: Convert to fraction form
    35,686.70/53,530.05 = 14,910.20/x
  3. Step 3: Cross multiply
    35,686.70x = 53,530.05 × 14,910.20
  4. Step 4: Simplify right side
    35,686.70x = 798,143,483.86
  5. Step 5: Solve for x
    x = 798,143,483.86/35,686.70
  6. Step 6: Final answer
    x = 22,365.30

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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.