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Finding the Fourth Proportional to 46,861.80, 70,292.70 and 19,153.32

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Solution

The fourth proportional to 46,861.80, 70,292.70 and 19,153.32 is: 28,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,861.80 : 70,292.70 = 19,153.32 : x
  2. Step 2: Convert to fraction form
    46,861.80/70,292.70 = 19,153.32/x
  3. Step 3: Cross multiply
    46,861.80x = 70,292.70 × 19,153.32
  4. Step 4: Simplify right side
    46,861.80x = 1,346,338,576.76
  5. Step 5: Solve for x
    x = 1,346,338,576.76/46,861.80
  6. Step 6: Final answer
    x = 28,729.98

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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.