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Finding the Fourth Proportional to 28,596.60, 42,894.90 and 25,316.10

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Solution

The fourth proportional to 28,596.60, 42,894.90 and 25,316.10 is: 37,974.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,596.60 : 42,894.90 = 25,316.10 : x
  2. Step 2: Convert to fraction form
    28,596.60/42,894.90 = 25,316.10/x
  3. Step 3: Cross multiply
    28,596.60x = 42,894.90 × 25,316.10
  4. Step 4: Simplify right side
    28,596.60x = 1,085,931,577.89
  5. Step 5: Solve for x
    x = 1,085,931,577.89/28,596.60
  6. Step 6: Final answer
    x = 37,974.15

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Similar ratio
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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.