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Finding the Fourth Proportional to 71,348.38, 98,526.95 and 53,412.25

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Solution

The fourth proportional to 71,348.38, 98,526.95 and 53,412.25 is: 73,758.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,348.38 : 98,526.95 = 53,412.25 : x
  2. Step 2: Convert to fraction form
    71,348.38/98,526.95 = 53,412.25/x
  3. Step 3: Cross multiply
    71,348.38x = 98,526.95 × 53,412.25
  4. Step 4: Simplify right side
    71,348.38x = 5,262,546,043.57
  5. Step 5: Solve for x
    x = 5,262,546,043.57/71,348.38
  6. Step 6: Final answer
    x = 73,758.45

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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.