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Finding the Fourth Proportional to 76,897.51, 115,275.80 and 26,950.38

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Solution

The fourth proportional to 76,897.51, 115,275.80 and 26,950.38 is: 40,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,897.51 : 115,275.80 = 26,950.38 : x
  2. Step 2: Convert to fraction form
    76,897.51/115,275.80 = 26,950.38/x
  3. Step 3: Cross multiply
    76,897.51x = 115,275.80 × 26,950.38
  4. Step 4: Simplify right side
    76,897.51x = 3,106,726,480.05
  5. Step 5: Solve for x
    x = 3,106,726,480.05/76,897.51
  6. Step 6: Final answer
    x = 40,400.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.