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Finding the Fourth Proportional to 36,700.68, 55,051.20 and 10,405.20

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Solution

The fourth proportional to 36,700.68, 55,051.20 and 10,405.20 is: 15,607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,700.68 : 55,051.20 = 10,405.20 : x
  2. Step 2: Convert to fraction form
    36,700.68/55,051.20 = 10,405.20/x
  3. Step 3: Cross multiply
    36,700.68x = 55,051.20 × 10,405.20
  4. Step 4: Simplify right side
    36,700.68x = 572,818,746.24
  5. Step 5: Solve for x
    x = 572,818,746.24/36,700.68
  6. Step 6: Final answer
    x = 15,607.85

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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.