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Finding the Fourth Proportional to 83,696.06, 115,526.16 and 49,710.08

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Solution

The fourth proportional to 83,696.06, 115,526.16 and 49,710.08 is: 68,615.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,696.06 : 115,526.16 = 49,710.08 : x
  2. Step 2: Convert to fraction form
    83,696.06/115,526.16 = 49,710.08/x
  3. Step 3: Cross multiply
    83,696.06x = 115,526.16 × 49,710.08
  4. Step 4: Simplify right side
    83,696.06x = 5,742,813,829.51
  5. Step 5: Solve for x
    x = 5,742,813,829.51/83,696.06
  6. Step 6: Final answer
    x = 68,615.11

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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.