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Finding the Fourth Proportional to 59,128.65, 88,698.65 and 19,688.54

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Solution

The fourth proportional to 59,128.65, 88,698.65 and 19,688.54 is: 29,534.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,128.65 : 88,698.65 = 19,688.54 : x
  2. Step 2: Convert to fraction form
    59,128.65/88,698.65 = 19,688.54/x
  3. Step 3: Cross multiply
    59,128.65x = 88,698.65 × 19,688.54
  4. Step 4: Simplify right side
    59,128.65x = 1,746,346,376.54
  5. Step 5: Solve for x
    x = 1,746,346,376.54/59,128.65
  6. Step 6: Final answer
    x = 29,534.69

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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.