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Finding the Fourth Proportional to 50,886.78, 70,223.76 and 28,225.01

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Solution

The fourth proportional to 50,886.78, 70,223.76 and 28,225.01 is: 38,950.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,886.78 : 70,223.76 = 28,225.01 : x
  2. Step 2: Convert to fraction form
    50,886.78/70,223.76 = 28,225.01/x
  3. Step 3: Cross multiply
    50,886.78x = 70,223.76 × 28,225.01
  4. Step 4: Simplify right side
    50,886.78x = 1,982,065,977.12
  5. Step 5: Solve for x
    x = 1,982,065,977.12/50,886.78
  6. Step 6: Final answer
    x = 38,950.51

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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.