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Finding the Fourth Proportional to 56,995.84, 85,495.50 and 19,555.39

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Solution

The fourth proportional to 56,995.84, 85,495.50 and 19,555.39 is: 29,333.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,995.84 : 85,495.50 = 19,555.39 : x
  2. Step 2: Convert to fraction form
    56,995.84/85,495.50 = 19,555.39/x
  3. Step 3: Cross multiply
    56,995.84x = 85,495.50 × 19,555.39
  4. Step 4: Simplify right side
    56,995.84x = 1,671,897,952.61
  5. Step 5: Solve for x
    x = 1,671,897,952.61/56,995.84
  6. Step 6: Final answer
    x = 29,333.69

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1.5x scale

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.