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Finding the Fourth Proportional to 74,688.80, 112,000.80 and 24,749.60

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Solution

The fourth proportional to 74,688.80, 112,000.80 and 24,749.60 is: 37,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,688.80 : 112,000.80 = 24,749.60 : x
  2. Step 2: Convert to fraction form
    74,688.80/112,000.80 = 24,749.60/x
  3. Step 3: Cross multiply
    74,688.80x = 112,000.80 × 24,749.60
  4. Step 4: Simplify right side
    74,688.80x = 2,771,974,999.68
  5. Step 5: Solve for x
    x = 2,771,974,999.68/74,688.80
  6. Step 6: Final answer
    x = 37,113.66

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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.