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Finding the Fourth Proportional to 65,862.14, 98,802.81 and 21,477.98

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Solution

The fourth proportional to 65,862.14, 98,802.81 and 21,477.98 is: 32,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,862.14 : 98,802.81 = 21,477.98 : x
  2. Step 2: Convert to fraction form
    65,862.14/98,802.81 = 21,477.98/x
  3. Step 3: Cross multiply
    65,862.14x = 98,802.81 × 21,477.98
  4. Step 4: Simplify right side
    65,862.14x = 2,122,084,283.11
  5. Step 5: Solve for x
    x = 2,122,084,283.11/65,862.14
  6. Step 6: Final answer
    x = 32,220.10

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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.