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Finding the Fourth Proportional to 52,376.61, 72,278.69 and 28,503.69

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Solution

The fourth proportional to 52,376.61, 72,278.69 and 28,503.69 is: 39,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,376.61 : 72,278.69 = 28,503.69 : x
  2. Step 2: Convert to fraction form
    52,376.61/72,278.69 = 28,503.69/x
  3. Step 3: Cross multiply
    52,376.61x = 72,278.69 × 28,503.69
  4. Step 4: Simplify right side
    52,376.61x = 2,060,209,373.37
  5. Step 5: Solve for x
    x = 2,060,209,373.37/52,376.61
  6. Step 6: Final answer
    x = 39,334.53

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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.