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Finding the Fourth Proportional to 60,487.36, 90,749.46 and 30,925.95

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Solution

The fourth proportional to 60,487.36, 90,749.46 and 30,925.95 is: 46,398.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,487.36 : 90,749.46 = 30,925.95 : x
  2. Step 2: Convert to fraction form
    60,487.36/90,749.46 = 30,925.95/x
  3. Step 3: Cross multiply
    60,487.36x = 90,749.46 × 30,925.95
  4. Step 4: Simplify right side
    60,487.36x = 2,806,513,548.61
  5. Step 5: Solve for x
    x = 2,806,513,548.61/60,487.36
  6. Step 6: Final answer
    x = 46,398.35

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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.