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Finding the Fourth Proportional to 51,925.89, 77,888.81 and 12,482.99

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Solution

The fourth proportional to 51,925.89, 77,888.81 and 12,482.99 is: 18,724.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,925.89 : 77,888.81 = 12,482.99 : x
  2. Step 2: Convert to fraction form
    51,925.89/77,888.81 = 12,482.99/x
  3. Step 3: Cross multiply
    51,925.89x = 77,888.81 × 12,482.99
  4. Step 4: Simplify right side
    51,925.89x = 972,285,368.65
  5. Step 5: Solve for x
    x = 972,285,368.65/51,925.89
  6. Step 6: Final answer
    x = 18,724.48

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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.