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Finding the Fourth Proportional to 34,692.48, 47,875.68 and 19,788.48

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Solution

The fourth proportional to 34,692.48, 47,875.68 and 19,788.48 is: 27,308.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,692.48 : 47,875.68 = 19,788.48 : x
  2. Step 2: Convert to fraction form
    34,692.48/47,875.68 = 19,788.48/x
  3. Step 3: Cross multiply
    34,692.48x = 47,875.68 × 19,788.48
  4. Step 4: Simplify right side
    34,692.48x = 947,386,936.17
  5. Step 5: Solve for x
    x = 947,386,936.17/34,692.48
  6. Step 6: Final answer
    x = 27,308.14

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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.