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Finding the Fourth Proportional to 52,655.46, 72,664.53 and 28,782.12

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Solution

The fourth proportional to 52,655.46, 72,664.53 and 28,782.12 is: 39,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,655.46 : 72,664.53 = 28,782.12 : x
  2. Step 2: Convert to fraction form
    52,655.46/72,664.53 = 28,782.12/x
  3. Step 3: Cross multiply
    52,655.46x = 72,664.53 × 28,782.12
  4. Step 4: Simplify right side
    52,655.46x = 2,091,439,222.20
  5. Step 5: Solve for x
    x = 2,091,439,222.20/52,655.46
  6. Step 6: Final answer
    x = 39,719.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.