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Finding the Fourth Proportional to 52,154.80, 71,973.48 and 28,281.40

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Solution

The fourth proportional to 52,154.80, 71,973.48 and 28,281.40 is: 39,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,154.80 : 71,973.48 = 28,281.40 : x
  2. Step 2: Convert to fraction form
    52,154.80/71,973.48 = 28,281.40/x
  3. Step 3: Cross multiply
    52,154.80x = 71,973.48 × 28,281.40
  4. Step 4: Simplify right side
    52,154.80x = 2,035,510,777.27
  5. Step 5: Solve for x
    x = 2,035,510,777.27/52,154.80
  6. Step 6: Final answer
    x = 39,028.25

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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.