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Finding the Fourth Proportional to 76,572.86, 105,654.30 and 46,352.30

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Solution

The fourth proportional to 76,572.86, 105,654.30 and 46,352.30 is: 63,956.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,572.86 : 105,654.30 = 46,352.30 : x
  2. Step 2: Convert to fraction form
    76,572.86/105,654.30 = 46,352.30/x
  3. Step 3: Cross multiply
    76,572.86x = 105,654.30 × 46,352.30
  4. Step 4: Simplify right side
    76,572.86x = 4,897,319,809.89
  5. Step 5: Solve for x
    x = 4,897,319,809.89/76,572.86
  6. Step 6: Final answer
    x = 63,956.34

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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.