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Finding the Fourth Proportional to 58,653.44, 87,981.60 and 19,246.40

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Solution

The fourth proportional to 58,653.44, 87,981.60 and 19,246.40 is: 28,870.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,653.44 : 87,981.60 = 19,246.40 : x
  2. Step 2: Convert to fraction form
    58,653.44/87,981.60 = 19,246.40/x
  3. Step 3: Cross multiply
    58,653.44x = 87,981.60 × 19,246.40
  4. Step 4: Simplify right side
    58,653.44x = 1,693,329,066.24
  5. Step 5: Solve for x
    x = 1,693,329,066.24/58,653.44
  6. Step 6: Final answer
    x = 28,870.07

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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.