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Finding the Fourth Proportional to 52,765.56, 72,818.64 and 28,894.32

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Solution

The fourth proportional to 52,765.56, 72,818.64 and 28,894.32 is: 39,875.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,765.56 : 72,818.64 = 28,894.32 : x
  2. Step 2: Convert to fraction form
    52,765.56/72,818.64 = 28,894.32/x
  3. Step 3: Cross multiply
    52,765.56x = 72,818.64 × 28,894.32
  4. Step 4: Simplify right side
    52,765.56x = 2,104,045,086.12
  5. Step 5: Solve for x
    x = 2,104,045,086.12/52,765.56
  6. Step 6: Final answer
    x = 39,875.35

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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.