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Finding the Fourth Proportional to 34,774.22, 47,985.54 and 19,666.10

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Solution

The fourth proportional to 34,774.22, 47,985.54 and 19,666.10 is: 27,137.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,774.22 : 47,985.54 = 19,666.10 : x
  2. Step 2: Convert to fraction form
    34,774.22/47,985.54 = 19,666.10/x
  3. Step 3: Cross multiply
    34,774.22x = 47,985.54 × 19,666.10
  4. Step 4: Simplify right side
    34,774.22x = 943,688,428.19
  5. Step 5: Solve for x
    x = 943,688,428.19/34,774.22
  6. Step 6: Final answer
    x = 27,137.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.