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Finding the Fourth Proportional to 45,873.74, 68,798.13 and 12,585.92

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Solution

The fourth proportional to 45,873.74, 68,798.13 and 12,585.92 is: 18,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,873.74 : 68,798.13 = 12,585.92 : x
  2. Step 2: Convert to fraction form
    45,873.74/68,798.13 = 12,585.92/x
  3. Step 3: Cross multiply
    45,873.74x = 68,798.13 × 12,585.92
  4. Step 4: Simplify right side
    45,873.74x = 865,887,369.14
  5. Step 5: Solve for x
    x = 865,887,369.14/45,873.74
  6. Step 6: Final answer
    x = 18,875.45

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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.