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Finding the Fourth Proportional to 50,914.60, 70,275.54 and 28,565.80

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Solution

The fourth proportional to 50,914.60, 70,275.54 and 28,565.80 is: 39,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,914.60 : 70,275.54 = 28,565.80 : x
  2. Step 2: Convert to fraction form
    50,914.60/70,275.54 = 28,565.80/x
  3. Step 3: Cross multiply
    50,914.60x = 70,275.54 × 28,565.80
  4. Step 4: Simplify right side
    50,914.60x = 2,007,477,020.53
  5. Step 5: Solve for x
    x = 2,007,477,020.53/50,914.60
  6. Step 6: Final answer
    x = 39,428.32

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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.