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Finding the Fourth Proportional to 46,854.50, 70,281.82 and 19,152.50

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Solution

The fourth proportional to 46,854.50, 70,281.82 and 19,152.50 is: 28,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,854.50 : 70,281.82 = 19,152.50 : x
  2. Step 2: Convert to fraction form
    46,854.50/70,281.82 = 19,152.50/x
  3. Step 3: Cross multiply
    46,854.50x = 70,281.82 × 19,152.50
  4. Step 4: Simplify right side
    46,854.50x = 1,346,072,557.55
  5. Step 5: Solve for x
    x = 1,346,072,557.55/46,854.50
  6. Step 6: Final answer
    x = 28,728.78

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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.