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Finding the Fourth Proportional to 25,281.87, 37,946.07 and 12,810.58

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Solution

The fourth proportional to 25,281.87, 37,946.07 and 12,810.58 is: 19,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,281.87 : 37,946.07 = 12,810.58 : x
  2. Step 2: Convert to fraction form
    25,281.87/37,946.07 = 12,810.58/x
  3. Step 3: Cross multiply
    25,281.87x = 37,946.07 × 12,810.58
  4. Step 4: Simplify right side
    25,281.87x = 486,111,165.42
  5. Step 5: Solve for x
    x = 486,111,165.42/25,281.87
  6. Step 6: Final answer
    x = 19,227.66

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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.