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Finding the Fourth Proportional to 58,478.52, 87,709.50 and 19,036.20

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Solution

The fourth proportional to 58,478.52, 87,709.50 and 19,036.20 is: 28,551.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,478.52 : 87,709.50 = 19,036.20 : x
  2. Step 2: Convert to fraction form
    58,478.52/87,709.50 = 19,036.20/x
  3. Step 3: Cross multiply
    58,478.52x = 87,709.50 × 19,036.20
  4. Step 4: Simplify right side
    58,478.52x = 1,669,655,583.90
  5. Step 5: Solve for x
    x = 1,669,655,583.90/58,478.52
  6. Step 6: Final answer
    x = 28,551.60

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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.