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Finding the Fourth Proportional to 65,888.09, 90,924.45 and 35,673.16

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Solution

The fourth proportional to 65,888.09, 90,924.45 and 35,673.16 is: 49,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,888.09 : 90,924.45 = 35,673.16 : x
  2. Step 2: Convert to fraction form
    65,888.09/90,924.45 = 35,673.16/x
  3. Step 3: Cross multiply
    65,888.09x = 90,924.45 × 35,673.16
  4. Step 4: Simplify right side
    65,888.09x = 3,243,562,452.76
  5. Step 5: Solve for x
    x = 3,243,562,452.76/65,888.09
  6. Step 6: Final answer
    x = 49,228.36

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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.