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Finding the Fourth Proportional to 46,688.98, 70,019.80 and 18,599.70

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Solution

The fourth proportional to 46,688.98, 70,019.80 and 18,599.70 is: 27,894.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,688.98 : 70,019.80 = 18,599.70 : x
  2. Step 2: Convert to fraction form
    46,688.98/70,019.80 = 18,599.70/x
  3. Step 3: Cross multiply
    46,688.98x = 70,019.80 × 18,599.70
  4. Step 4: Simplify right side
    46,688.98x = 1,302,347,423.98
  5. Step 5: Solve for x
    x = 1,302,347,423.98/46,688.98
  6. Step 6: Final answer
    x = 27,894.11

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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.