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Finding the Fourth Proportional to 55,893.47, 83,848.55 and 18,457.50

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Solution

The fourth proportional to 55,893.47, 83,848.55 and 18,457.50 is: 27,689.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,893.47 : 83,848.55 = 18,457.50 : x
  2. Step 2: Convert to fraction form
    55,893.47/83,848.55 = 18,457.50/x
  3. Step 3: Cross multiply
    55,893.47x = 83,848.55 × 18,457.50
  4. Step 4: Simplify right side
    55,893.47x = 1,547,634,611.63
  5. Step 5: Solve for x
    x = 1,547,634,611.63/55,893.47
  6. Step 6: Final answer
    x = 27,689.01

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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.