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Finding the Fourth Proportional to 52,713.87, 72,737.95 and 31,488.63

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Solution

The fourth proportional to 52,713.87, 72,737.95 and 31,488.63 is: 43,450.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,713.87 : 72,737.95 = 31,488.63 : x
  2. Step 2: Convert to fraction form
    52,713.87/72,737.95 = 31,488.63/x
  3. Step 3: Cross multiply
    52,713.87x = 72,737.95 × 31,488.63
  4. Step 4: Simplify right side
    52,713.87x = 2,290,418,394.51
  5. Step 5: Solve for x
    x = 2,290,418,394.51/52,713.87
  6. Step 6: Final answer
    x = 43,450.01

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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.