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Finding the Fourth Proportional to 52,695.52, 72,720.90 and 28,823.74

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Solution

The fourth proportional to 52,695.52, 72,720.90 and 28,823.74 is: 39,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,695.52 : 72,720.90 = 28,823.74 : x
  2. Step 2: Convert to fraction form
    52,695.52/72,720.90 = 28,823.74/x
  3. Step 3: Cross multiply
    52,695.52x = 72,720.90 × 28,823.74
  4. Step 4: Simplify right side
    52,695.52x = 2,096,088,132.36
  5. Step 5: Solve for x
    x = 2,096,088,132.36/52,695.52
  6. Step 6: Final answer
    x = 39,777.35

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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.