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Finding the Fourth Proportional to 58,563.84, 87,854.16 and 19,111.20

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Solution

The fourth proportional to 58,563.84, 87,854.16 and 19,111.20 is: 28,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,563.84 : 87,854.16 = 19,111.20 : x
  2. Step 2: Convert to fraction form
    58,563.84/87,854.16 = 19,111.20/x
  3. Step 3: Cross multiply
    58,563.84x = 87,854.16 × 19,111.20
  4. Step 4: Simplify right side
    58,563.84x = 1,678,998,422.59
  5. Step 5: Solve for x
    x = 1,678,998,422.59/58,563.84
  6. Step 6: Final answer
    x = 28,669.54

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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.