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Finding the Fourth Proportional to 52,762.32, 72,811.98 and 28,888.98

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Solution

The fourth proportional to 52,762.32, 72,811.98 and 28,888.98 is: 39,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,762.32 : 72,811.98 = 28,888.98 : x
  2. Step 2: Convert to fraction form
    52,762.32/72,811.98 = 28,888.98/x
  3. Step 3: Cross multiply
    52,762.32x = 72,811.98 × 28,888.98
  4. Step 4: Simplify right side
    52,762.32x = 2,103,463,833.98
  5. Step 5: Solve for x
    x = 2,103,463,833.98/52,762.32
  6. Step 6: Final answer
    x = 39,866.78

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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.