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Finding the Fourth Proportional to 62,703.47, 93,999.83 and 47,978.12

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Solution

The fourth proportional to 62,703.47, 93,999.83 and 47,978.12 is: 71,924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,703.47 : 93,999.83 = 47,978.12 : x
  2. Step 2: Convert to fraction form
    62,703.47/93,999.83 = 47,978.12/x
  3. Step 3: Cross multiply
    62,703.47x = 93,999.83 × 47,978.12
  4. Step 4: Simplify right side
    62,703.47x = 4,509,935,118.83
  5. Step 5: Solve for x
    x = 4,509,935,118.83/62,703.47
  6. Step 6: Final answer
    x = 71,924.81

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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.