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Finding the Fourth Proportional to 75,762.48, 104,508.88 and 47,418.96

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Solution

The fourth proportional to 75,762.48, 104,508.88 and 47,418.96 is: 65,411.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,762.48 : 104,508.88 = 47,418.96 : x
  2. Step 2: Convert to fraction form
    75,762.48/104,508.88 = 47,418.96/x
  3. Step 3: Cross multiply
    75,762.48x = 104,508.88 × 47,418.96
  4. Step 4: Simplify right side
    75,762.48x = 4,955,702,400.36
  5. Step 5: Solve for x
    x = 4,955,702,400.36/75,762.48
  6. Step 6: Final answer
    x = 65,411.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.