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Finding the Fourth Proportional to 56,346.94, 77,675.94 and 42,894.76

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Solution

The fourth proportional to 56,346.94, 77,675.94 and 42,894.76 is: 59,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,346.94 : 77,675.94 = 42,894.76 : x
  2. Step 2: Convert to fraction form
    56,346.94/77,675.94 = 42,894.76/x
  3. Step 3: Cross multiply
    56,346.94x = 77,675.94 × 42,894.76
  4. Step 4: Simplify right side
    56,346.94x = 3,331,890,804.07
  5. Step 5: Solve for x
    x = 3,331,890,804.07/56,346.94
  6. Step 6: Final answer
    x = 59,131.71

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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.