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Finding the Fourth Proportional to 35,220.48, 52,830.78 and 8,925.20

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Solution

The fourth proportional to 35,220.48, 52,830.78 and 8,925.20 is: 13,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,220.48 : 52,830.78 = 8,925.20 : x
  2. Step 2: Convert to fraction form
    35,220.48/52,830.78 = 8,925.20/x
  3. Step 3: Cross multiply
    35,220.48x = 52,830.78 × 8,925.20
  4. Step 4: Simplify right side
    35,220.48x = 471,525,277.66
  5. Step 5: Solve for x
    x = 471,525,277.66/35,220.48
  6. Step 6: Final answer
    x = 13,387.82

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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.