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Finding the Fourth Proportional to 52,357.79, 72,251.65 and 28,484.56

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Solution

The fourth proportional to 52,357.79, 72,251.65 and 28,484.56 is: 39,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,357.79 : 72,251.65 = 28,484.56 : x
  2. Step 2: Convert to fraction form
    52,357.79/72,251.65 = 28,484.56/x
  3. Step 3: Cross multiply
    52,357.79x = 72,251.65 × 28,484.56
  4. Step 4: Simplify right side
    52,357.79x = 2,058,056,425.22
  5. Step 5: Solve for x
    x = 2,058,056,425.22/52,357.79
  6. Step 6: Final answer
    x = 39,307.55

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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.