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Finding the Fourth Proportional to 52,415.60, 72,317.73 and 47,363.60

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Solution

The fourth proportional to 52,415.60, 72,317.73 and 47,363.60 is: 65,347.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,415.60 : 72,317.73 = 47,363.60 : x
  2. Step 2: Convert to fraction form
    52,415.60/72,317.73 = 47,363.60/x
  3. Step 3: Cross multiply
    52,415.60x = 72,317.73 × 47,363.60
  4. Step 4: Simplify right side
    52,415.60x = 3,425,228,036.63
  5. Step 5: Solve for x
    x = 3,425,228,036.63/52,415.60
  6. Step 6: Final answer
    x = 65,347.49

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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.