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Finding the Fourth Proportional to 59,875.90, 89,814.66 and 28,703.86

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Solution

The fourth proportional to 59,875.90, 89,814.66 and 28,703.86 is: 43,056.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,875.90 : 89,814.66 = 28,703.86 : x
  2. Step 2: Convert to fraction form
    59,875.90/89,814.66 = 28,703.86/x
  3. Step 3: Cross multiply
    59,875.90x = 89,814.66 × 28,703.86
  4. Step 4: Simplify right side
    59,875.90x = 2,578,027,426.59
  5. Step 5: Solve for x
    x = 2,578,027,426.59/59,875.90
  6. Step 6: Final answer
    x = 43,056.18

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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.