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Finding the Fourth Proportional to 71,569.65, 98,775 and 41,355.03

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Solution

The fourth proportional to 71,569.65, 98,775 and 41,355.03 is: 57,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569.65 : 98,775 = 41,355.03 : x
  2. Step 2: Convert to fraction form
    71,569.65/98,775 = 41,355.03/x
  3. Step 3: Cross multiply
    71,569.65x = 98,775 × 41,355.03
  4. Step 4: Simplify right side
    71,569.65x = 4,084,843,088.25
  5. Step 5: Solve for x
    x = 4,084,843,088.25/71,569.65
  6. Step 6: Final answer
    x = 57,075.07

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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.